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PENGARUH JUMLAH TRITON X-100, SUHU DAN WAKTU TAHAN KALSINASI TERHADAP SINTESIS POWDER ZIRKONIA DAN APLIKASINYA DALAM MENDEGRADASI METIL ORANGE Nono Darsono; Tuty Emilia Agustina; Novandra Eko Aristian; Yogi Pratama
Jurnal Teknik Kimia Vol 23 No 2 (2017): Jurnal Teknik Kimia
Publisher : Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya

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Abstract

Zirkonia merupakan material semikonduktor yang memiliki sifat polimorf. Material ini memiliki keunggulan yaitu konduktivitas termal rendah (4,2 Wm-1K-1 pada suhu kamar), kekerasan tinggi (untuk fase monoklinik sebesar 18 GPa dan untuk fase amorf sebesar 14-11 GPa), ketahanan terhadap korosi, dan band gap yang besar (5 eV). Berbeda dari zirkonia biasa, ketika ukuran zirkonia diubah menjadi nano, sifat-sifatnya pun berubah. Metode yang digunakan untuk sintesis nanopowder ini adalah metode sol gel. Tujuan penelitian ini adalah mengetahui ukuran kristal yang terbentuk dan struktur partikel dengan pengaruh jumlah triton X-100 (0%, 5%, 10%) berat, suhu kalsinasi (700°C, 800°C, 900°C), serta waktu tahan kalsinasi (1 jam, 2 jam, 3 jam). Zirkonia yang telah disintesis diaplikasikan dalam mendegradasi metil orange sebagai fotokatalis, ditinjau persen degradasi dari metil orange. Hasil analisa SEM menunjukkan bahwa ukuran zirkonia terkecil terdapat pada zirkonia yang disintesis pada suhu kalsinasi 800oC, menggunakan 10% of Triton X-100, dan lebih homogen pada waktu tahan kalsinasi 2 jam. Persen degradasi metil orange terbesar yaitu pada pengaruh suhu kalsinasi 800 ° C, menggunakan 10% triton X-100, dan waktu tahan kalsinasi 3 jam.
ANTRIAN GERBANG KELUAR PARKIR DI UNIVERSITAS JENDERAL ACHMAD YANI CIMAHI Antono Damayanto; Fernanda Virgiawan; Prima Sukma Juana; Yogi Pratama
Jurnal Transportasi Vol. 20 No. 1 (2020)
Publisher : Forum Studi Transportasi antar Perguruan Tinggi (FSTPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (559.063 KB) | DOI: 10.26593/jtrans.v20i1.3855.47-56

Abstract

Abstract The number of vehicles at Jenderal Achmad Yani University continues to increase, thus requiring increased parking security on campus. For this reason, Jenderal Achmad Yani University implemented a paid parking gate system, but this turned out to have an impact on the emergence of a long vehicle queue at the parking exit gate. This study aims to find a solution to minimize the length of the queue at the parking gate. In this study two alternatives are proposed, namely adding ticket booths (Alternative 1) or improving service time by using an automatic card system (Alternative 2). The results obtained show that for the next 5 years, Alternative 1 needs to add 1 ticket booth and Alternative 2 does not need to add ticket booth. For the next 10 years, Alternative 1 needs to add 1 more ticket booth in 2027, while Alternative 2 requires the addition of 1 ticket booth in 2026. Keywords: parking, queue, service time, automatic card system  Abstrak Jumlah kendaraan di Universitas Jenderal Achmad Yani meningkat terus, sehingga memerlukan peningkatan keamanan parkir di kampus. Dengan alasan itu, Universitas Jenderal Achmad Yani menerapkan sistem gerbang parkir berbayar, tetapi hal ini ternyata berdampak pada timbulnya antrian kendaraan yang panjang di gerbang keluar parkir. Tujuan penelitian adalah mencari solusi untuk meminimalkan panjang antrian di gerbang keluar parkir. Pada studi ini diusulkan 2 alternatif, yaitu menambah gardu (Alternatif 1) atau memperbaiki waktu pelayanan dengan menggunakan sistem kartu otomatis (Alternatif 2). Hasil yang didapat menunjukkan bahwa untuk 5 tahun mendatang Alternatif 1 perlu menambah 1 gardu dan Alternatif 2 tidak perlu menambah gardu. Untuk 10 tahun mendatang, Alternatif 1 perlu menambah 1 gardu lagi pada tahun 2027, sedangkan Alternatif 2 membutuhkan penambahan 1 gardu pada tahun 2026. Kata-kata kunci: parkir, antrian, waktu pelayanan, sistem kartu otomatis
PERENCANAAN LIFT SEPEDA MOTOR PADA MOBIL DISTRIBUSI MOTOR DUA TINGKAT Yogi Pratama; Joni Dewanto
Mechanova Vol 4 (2015): Semester gasal 2015-2016
Publisher : Petra Christian University

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Abstract

Pada masa sekarang, kebutuhan masyarakat dalam menggunakan sepeda motor semakinlama semakin meningkat. Hal ini juga diikuti oleh pertambahan jumlah pendudukan yangmeningkat dari waktu ke waktu. Tuntutan akan penggunaan sepeda motor bagi masyarakatmenengah ke bawah secara tak sadar telah jauh meningkat, dimana transportasi adalah saranautama yang berhubungan juga dengan perkembangan suatu daerah. Pabrikan motor telahmengetahui dan mencoba meningkatkan kapasitas produksi untuk memenuhi permintaan pasar.Oleh karena itu, diperlukan alat guna membantu mengangkat hasil produksi dalam prosesdistribusi sepeda motor agar meningkatkan efisiensi. Salah satu alat yang dibutuhkan adalah liftyang mana menggantikan tenaga manusia sebagai terobosan dalam mempercepat prosespengangkatan, pengangkutan dan menjaga keselamatan kerja tetap pada kondisi baik.
Peranan Organisasi Gerakan Mahasiswa Nasional Indonesia ( GMNI ) Dalam Meningkatkan Sikap Nasionalisme Yogi Pratama; Irawan Suntoro; Yunisca Nurmalisa
Jurnal Kultur Demokrasi Vol 5, No 13 (2018): JURNAL KULTUR DEMOKRASI
Publisher : FKIP Unila

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Abstract

The purpose of this research is to explain the role of the National Students Movement Organization (GMNI) in improving nationalism. This research applied descriptive quantitative method, the subject of this study consisted of members of the National Students Movement at the DPC secretariat GMNI Bandar Lampung. There were 50 respondents took part in this research. The data collection technique was conducted using questionnaires and the data analysis was done using interval formula and percentage. The results of this research showed that the National Students Organization played an important role in improving nationalism among it's members, in forming the ideological Pancasila - based character, while the implementation of attitudes within the organization was determined in the good category. This means that the National Students Movement Organization (GMNI) can ensure its members to have a nationalist attitude.Tujuan dalam penelitian ini untuk menjelaskan peran Organisasi Gerakan Mahasiswa Nasional Indonesia (GMNI) dalam meningkatkan sikap nasionalisme. Penelitian ini menggunakan metode deskriptif kuantitatif, subjek penelitian ini adalah anggota Gerakan Mahasiswa Nasional Indonesia yang ada disekretariat DPC GMNI Bandar Lampung. Jumlah responden yang diambil yaitu sebanyak 50 orang dan teknik pengumpulan data yaitu, menggunakan angket dengan analisis data menggunakan rumus interval dan presentase. Hasil penelitian ini menunjukan bahwa peran Organisasi Gerakan Mahasiswa Indonesia yaitu meningkatkan  siakp nasionalisme, pembentukan karakter berbasis pada nilai-nilai ideologi Pancasila, serta pelaksanaan sikap dalam organisasi berada pada kategori baik.  Hal ini berarti peranan Organisasi Gerakan Mahasiswa Nasional indonesia dapat menjadikan anggotanya memiliki sikap Nasionalis.Kata kunci : mahasiswa, nasionalisme, organisasi.
SIKAP ORANG TUA TERHADAP ANAK YANG TIDAK MELANJUTKAN PENDIDIKAN KEJENJANG YANG LEBIH TINGGI DI DESA BEDENG SIKURAN KECAMATAN INUMAN KABUPATEN KUANTAN SINGINGI Yogi Pratama; Aswandi Bahar; Widiastuti Widiastuti
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan

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Abstract

Abstrack: The problem in this research is: What is the attitude of parents of children who do not continue their education to a higher level. This study aims: To determine the attitude of parents of children who do not continue their education to a higher level. This research is deskrpitif with a quantitative approach, this method aims to provide a systematic overview of the state of the ongoing research on the object of the attitude of parents of children who do not melanjuttkan education to a higher level. Where the research is in the village of the District Inuman Bedeng Sikuran. The population in this study were parents in the village of the District Sikuran Bedeng Inuman, which amounted to 110 people, while a sample of 52 parents. The results showed that: Attitudes Parents of children who do not continue education to a higher level classified as Good. It is proved from the results of recapitulation of data, namely: 1.Komponen Cognitive respondents agreed amounted to 44.15%. 2. Affective component respondents saying Agree at 48.67% 3. Component Conative respondents agreed amounted to 45.05%.Keywords: Attitudes, Parents, Children, Education
MODIFIKASI SISTEM KONTROL MESIN JIG UNDERBODY UUA TACK DENGAN PLC OMRON SYSMAC-CJ1M M Hidayat; Yogi Pratama
Technologic Vol 4, No 1 (2013): Technologic
Publisher : Politeknik Manufaktur Astra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52453/t.v4i1.107

Abstract

Tingginya angka produksi perusahaan manufaktur membuat semua mesin harus mampu bekerja dengan baik. Mesin jig UUA Tack, line Underbody sering mengalami kerusakan pada sistem kontrolnya akibat error module sehingga line stop sering terjadi dan pada akhirnya tidak mampu menunjang angka produksi perusahaan. Untuk menanggulangi permasalahan tersebut maka dilakukanlah modifikasi dengan mengganti sistem kontrol menggunakan Programmable Logic Controller (PLC) dan membuat program (ladder diagram) yang disesuaikan dengan proses kerja pada mesin sehingga modifikasi ini diharapkan mampu mengurangi angka line stop pada mesin dan dapat menunjang produksi perusahaan.
STUDY OF N FERTILIZER AND BOKASHI CHICKEN MANURE APPLICATION ON GROWTH AND YIELD OF CELERY (Apium graveolens L.) Yogi Pratama; Cik Zulia; Rita Mawarni
Bernas : Jurnal Penelitian Pertanian Vol 14, No 2 (2018): Bernas July 2018
Publisher : Universitas Asahan

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Abstract

Penelitian ini dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas Asahan, JalanJend. Ahmad Yani, Kec. Kisaran Timur, Kabupaten Asahan. Penelitian dilaksanakan pada bulanMaret hingga Mei 2018. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) Faktorialdengan 2 faktor, yaitu : Faktor dosis pupuk N dengan 3 taraf, yaitu : N0 = tanpa pupuk (og/polibag), N1 = pupuk ZA (5 g/polibag), N2 = pupuk Urea (5 g/polibag). Faktor dosis bokashikotoran ayam dengan 3 taraf, yaitu : B0 = 0 ton/ha (0 kg/polibag), B1 = 10 ton/ha (250 g/polibag), B2 = 20 ton/ha (500 g/polibag). Aplikasi pupuk N menghasilkan tinggi tanaman sebesar 22,71 cm, jumlah daun 16,72 helai, produksi per tanaman 27,13 g, produksi per plot sebesar 113,06 g dan pH tanah 6,42. Pemberian bokashi kotoran ayam menghasilkan tinggi tanaman 22,28 cm, jumlah daun 16,50 helai, produksi per tanaman 27,13 g, produksi per plot 113,78 dan pH tanah 6,60. Tidak terjadi interaksi antara aplikasi pupuk N dan bokashi kotoran ayam terhadap pertumbuhan dan produksi tanaman seledri. Tetapi interaksi keduanya meningkatkan pH tanah hingga 6,95.
ANALISA SISTEM INFORMASI STOCK CONTROLLING SEPATU DENGAN MENGGUNAKAN METODE BACK ORDER Yogi Pratama; Iqbal Kamil Siregar; Dewi Maharani
JUTSI: Jurnal Teknologi dan Sistem Informasi Vol 1, No 2 (2021): June 2021
Publisher : LPPM STMIK Royal Kisaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jutsi.v1i2.1161

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Abstract: The development of computer science as a human tool, especially in data processing media and the excellence factor of the computer itself which can be in the form of technological advances in information. With that we will produce goals information that is fast and precise so that it helps in making decisions in processing data items, both goods in and out of the process of buying and selling goods. Store shoes Abang Adik is a business that is engaged in the sale of shoes and this shop has many obstacles in the report and the use of computers that are not maximal. In this case the back order method can be used to solve the problem so as to avoid store losses. With this method the back order method functions as if the goods in the warehouse are running low then the seller will know and will directly order the goods to the supplier to add to the stock of empty goods. With the system of controlling goods using the back order method can prevent the shortage of goods in the store shoes Abang Adik and the calculation of inventory costs more accurately.            Keyword: Stock Controlling; Visual Basic; Back Order Method.  Abstrak: Perkembangan terhadap ilmu komputer sebagai alat bantu manusia khususnya dalam  media pengolahan data dan faktor keunggulan dari komputer itu sendiri yang dapat berupa kemajuan teknologi dibidang informasi. Dengan hal itu kita akan menghasilkan tujuan informasi yang cepat dan tepat sehingga membantu dalam membuat keputusan dalam mengolah data barang, baik barang yang masuk dan keluar pada proses pembelian maupun penjualan barang-barang.  Toko Abang Adik Shoes merupakan usaha yang bergerak di bidang penjualan sepatu dan toko ini ada banyak kendala dalam laporan serta penggunaan komputer yang kurang maksismal. Dalam hal ini metode back order dapat digunakan untuk memecahkan masalah tersebut sehingga tehindar dari kerugian toko. Dengan hal ini metode back order berfungsi sebagai apabila barang yang berada digudang menipis maka penjual akan tahu dan secara langsung akan memesan barang kepada supplier untuk menambah stok barang yang kosong. Dengan adanya sistem pengontrolan barang dengan metode back order dapat mencegah terjadinya kekurangan stock barang pada Toko Abang Adik Shoes dan perhitungan biaya-biaya persediaan lebih akurat. Kata Kunci: Stock Controlling; Visual Basic; Metode Back Order.
PERBANDINGAN KUALITAS LAYANAN KINERJA PERANGKAT JARINGAN TP-LINK WIRELESS N ROUTER DAN GL- INET WIRELESS ROUTER BERBASIS FIRMWARE OPENWRT Yogi Pratama; Rum Mohamad Andri K. Rasyid
Journal of Information System Management (JOISM) Vol. 4 No. 1 (2022): Juni
Publisher : Universitas Amikom Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24076/joism.2022v4i1.760

Abstract

The development of the internet network and network equipment is currently very rapid, to meet the needs of internet usage, network devices are used as supporting tools in service access and network deployment. According to research conducted in a performance comparison analysis between the default firmware and the openwrt firmware [1], the performance of the network device is not only determined by the hardware specifications contained in the network device, but is also determined by the firmware in the network device. according to a literature review from various sources that the openwrt firmware can be used as a firmware solution to improve the performance of network devices that have limited service features and as firmware updates for network devices that do not get development support from vendors.The research will be conducted by analyzing the comparison of the performance of the Gl iNet Wireless Router network device which was created for the openwrt firmware and already using the openwrt firmware from the manufacturer, with the Tp Link Wireless Router network device, which is a network device that will implement the openwrt firmware. The design is carried out using the PPDIOO Life-Cycle Approach network development method, and a comparative analysis of network quality using QoS (Quality of Service) parameters.The final result of this research is how to implement and how the openwrt firmware runs on network devices that are not actually using the original firmware based on the results of network parameters jitter, delay, packet loss, throughput and signal strength testing in internet service access. Keywords : OpenWrt, Quality of Service, PPDIOO, Life-Cycle Approach.
Pemberdayaan Fatayat NU Kota Bogor Melalui Workshop Sabun Padat Adrinoviarini Adrinoviarini; Ririn Fatma Nanda; Dony Febrianto; Yogi Pratama
PRAXIS: Jurnal Pengabdian kepada Masyarakat Vol 1 No 3 (2023): PRAXIS
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47776/praxis.v1i3.637

Abstract

The target of the solid soap workshop community empowerment is the Fatayat NU in Bogor City. The needs of the actors of change (members of Fatayat NU Bogor City) in the form of normative needs can be met by the target community (Fatayat NU Bogor City) with the efforts of the target community to seek various services for their members through solid soap workshops is active involvement in fulfilling basic needs household. The solid soap workshop is tailored to the needs of the community who use soap for their daily needs. Solid soap workshops use materials and tools that are cheap and easy to find in households, namely: cooking oil, caustic soda, fragrance, scales and soap molds. Workshop participants were representatives of 6 PAC Fatayat NU Bogor City. The workshop was held at the Integrated Laboratory of the Faculty of Engineering and Computer Science (FTIK) Nahdlatul Ulama University of Indonesia (Unusia). The resource persons came from lecturers from the Unusia Agro-Industry Technology Study Program assisted by 2 students. The method used in carrying out the service was counseling and practice on how to make solid soap. The workshop participants will receive a module on how to make soap, training on making soap and soap made by each participant. After the workshop is finished, an evaluation will be carried out by distributing questionnaires to the workshop participants to find out how far the effectiveness of the workshop is and the level of satisfaction of the participants in the soap making workshop. evaluation through a questionnaire obtained the following results: (1) 92.3% of participants could easily accept and understand the solid soap workshop material; (2) 76.9% of participants stated that the resource person mastered the workshop material well; and (3) 69.2% of participants stated that the training material n delivered in order and clearly systematically. From the questionnaire it was also known that the workshop participants hoped that there would be other empowerment workshops that would support the economic independence of the participants. In general, the hope of this empowerment is to fulfill basic household needs that can be fulfilled on their own in a sustainable manner so as to foster economic independence and improve people's welfare.