E-Journal Politeknik Negeri Cilacap
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Pengaruh Media Tanam Dan Jenis Formula Pupuk Terhadap Pertumbuhan Dan Produksi Pakcoy (Brassica Rapa L.) Pada Teknologi Hidroponik Sistem Terapung
Get PDFKebutuhan akan hasil pertanian semakin meningkat seiring jumlah penduduk yang semakin meningkat. Kemajuan akan teknologi terus meningkat, yang mengakibatkan industri pabrik semakin berkembang, sehingga menggeser banyak lahan pertanian terutama di daerah perkotaan yang menyebabkan lahan pertanian semakin terbatas. Hidroponik adalah salah satu alternatif yang dapat digunakan untuk meningkatkan produktifitas tanaman terutama di lahan sempit. Pada budidaya hidroponik, media tanam dan larutan nutrisi merupakan faktor yang mempengaruhi pertumbuhan tanaman dan penentu hasil panen. Penelitian ini diharapkan dapat menentukan dampak pengembangan media dan nutrisi terhadap pertumbuhan dan produksi pakcoy. Penelitian ini memakai Rancangan Acak Lengkap (RAL), mencakup 2 variabel, yaitu unsur utamanya adalah media tanam (N) mencakup 3 aras yakni N1 (rockwool), N2 (arang sekam), N3 (cocopeat) unsur selanjutnya adalah jenis formula pupuk (P) dengan 2 aras yakni P1 dan P2. Hasil penelitian menunjukkan bahwa media tanam berpengaruh terhadap pertumbuhan dan produksi tanaman pakcoy pada tinggi tanaman, berat segar tanaman, berat segar layak konsumsi, formula nutrisi berpengaruh terhadap pertumbuhan dan produksi tanaman pakcoy pada panjang akar, berat segar tanaman, berat segar layak konsumsi, dan terdapat pengaruh interaksi antara media tanam dan formula nutrisi terhadap pertumbuhan dan produksi pakcoy pada panjang akar, berat segar tanaman, dan berat segar layak konsumsi.
Kata kunci: media tanam, pupuk, pakcoy, hidroponi
Edukasi Media Sosial Dalam Mewujudkan Pariwisata Humanis di Desa Polengan Kecamatan Srumbung Kabupaten Magelang
Get PDFMedia sosial merupakan salah satu sarana untuk menyampaikan informasi elektronik baik dalam bentuk gambar, video, musik dan lain sebagainya. Media sosial yang sering ditemui di sekitar kita yaitu, instagram, whatsapp, twitter, dan lain sebagainya. Media sosial bisa menjadi sarana penyampaian informasi elektronik yang efektif dan efisien jika digunakan dengan baik dan benar sesuai dengan aturan, tetapi jika penggunaanya salah ataupun mengandung konten yang negatif, maka bisa menimbulkan masalah baik bagi pengguna sendiri ataupun pihak-pihak lain yang terkait di dalamnya. Manusia sebagai aktor yang kreatif mampu menciptakan berbagai hal, salah satunya adalah ruang interaksi dunia maya. Situs komunitas seperti twitter, whatsapp, telegram, instagram, facebook dan lain sebagainya dibuat untuk promosi dan meningkatkan minat untuk berkunjung ke lokasi pariwisata. Namun para pengguna media sosial tersebut sangat minim mendapat informasi mengenai keberadaan Undang-Undang Nomor 11 Tahun 2008 tentang Informasi dan Transaksi Elektronik Jo. Undang-Undang Nomor 19 Tahun 2016 tentang Perubahan Atas Undang-Undang Nomor 11 Tahun 2008 tentang Informasi dan Transaksi Elektronik. Dasar hukum tersebut memuat berbagai pasal yang mengatur seseorang untuk bijak dalam menggunakan media sosial dalam hal ini penyampaian informasi elektronik. Dalam hal ini, diperlukan edukasi berkaitan dengan pemahaman peraturan perundangan yang mengatur tentang penyampaian informasi melalui media sosial serta memberikan edukasi nilai-nilai luhur yang ada dalam masyarakat demi meningkatkan potensi pariwisata yang humanis. Tahapan kegiatan edukasi yang dilaksanakan yakni 1). kajian hukum media sosial dan pariwisata, 2). kebijakan peraturan desa tentang pariwisata humanis, 3). permainan tradisional dalam mewujudkan pariwisata humanis, 4). Pembuatan dan penggunan media sosial yang humanis. Adanya kegiatan edukasi media sosial dalam mewujudkan pariwisata yang humanis ini telah memberikan banyak pengetahuan bagi masyarakat di lingkungan mitra untuk tetap menjaga dan melestarikan pariwisata yang humanis
Exploring the Intersection of Software Engineering and Mobile Technology from 2010 to 2021: A Review of Recent Research
Get PDFThis paper presents a comprehensive review of recent research on the intersection of software engineering and mobile technology. The review method involves a systematic literature search and analysis of relevant research articles. The study identifies key trends and challenges in the field, including the need for better testing and debugging tools, and the emergence of new technologies such as mobile cloud computing. Innovative solutions are proposed to address these challenges. The research focuses on topics such as mobile application development, mobile databases, and mobile security. The paper provides a concise summary of the major findings and proposed solutions. The study concludes that the field of software engineering and mobile technology is rapidly evolving, and further research is needed to effectively address the challenges and keep pace with the dynamic nature of the fiel
Pengembangan Back End Pada Aplikasi Alat Tulis Kantor Bank Indonesia Perwakilan Purwokerto Menggunakan Nodejs
Get PDFIn the Inventory Department at Bank Indonesia Purwokerto Representatives, previously the process of recording goods retrieval or self service was done manually by writing in a notebook so that the recording process was slow and prone to lost records. From these problems, an office stationery application was developed based on the Application Programming Interface (API) as the back end and implemented to mobile android as the front end. Development of the back end using the node.js programming language with the adonis framework, js and the database used is mysql. Application development is done by applying the scrum development method. The development of the ATK BI application was carried out in three sprints. This research produces an API-based application with a REST architecture in terms of the back end to facilitate the process of picking up goods and can be applied to an Android mobile application as a user interface. The development of this system can make it easier for users to collect data on taking goods, find out critical stock items, print goods retrieval reports and the office stationery information system database has been integrated on the server
Sistem Kendali Kunci Otomatis Pada Motor Matic Menggunakan Mikrokontroler Berbasis Android
Get PDFThe control system to regulate the on and off of the motorcycle engine which can also be used as a form of vehicle security should be designed and created as effectively as possible so that the safety of the motorcycle can be maintained and the risk of the vehicle being lost can be minimized. The system designed in this research is focused on how an automatic motorcycle engine can be turned on and off using microcontroller technology based on the android operating system. The working procedure of this system is to enter data on android using a web browser and google assistant, then the ESP 32 microcontroller component is in charge of forwarding and controlling the data. The testing process carried out in this study resulted in the conclusion that the maximum Wi-Fi distance between the ESP32 microcontroller and the android on the motorcycle to control the motorcycle engine was approximately 16 meters. This system is also capable of being a smart control machine to turn on the motor engine using voice commands by the driver using the help of the Google Assistant. This security system is not limited to security when the motorbike is stationary or when the motorbike is parked, this security can also be present when the vehicle is in use, and when the motorbike is left by the driver when it is on, the motorbike will automatically turn off if the ESP32 microcontroller is outside. Wi-Fi/Hotspot coverage originating from android devices
Pengaruh Variasi Rasio Perekat Terhadap Nilai Kalor Briket dari Ranting Kayu dan Sekam Padi
Get PDFWood twigs are solid waste that is usually used as fuel. However, people prefer to use LPG gas as a heat source for daily cooking. Wood twigs are rarely used by the community as a source of fuel. Around Kamulyan Beach Cilacap there are scattered wooden branches. In Cilacap Regency there is agricultural waste, especially in rice fields, namely husk waste. Experiments to increase the use of beach wood husks and twigs as materials for making briquettes with 10%, 15%, and 20% tapioca flour adhesives. The purpose of this study is to determine the effect of variations in adhesive portions in percent of a briquette on its heating value. Results of the study exhibit the change of heating value with variations in adhesive portions. Adhesive of 20% w/w produces the highest heat of 28139,33 calori, second highest is produced from briquettes with 15% w/w adhesive, which is 2713,44 calori and the lowest is from 10% adhesive briquettes with a heating value of 2612,93 calori. The higher portion of adhesive will increase briquette’s heating value because it tighten particles and harden briquettes that extend heat produced. The quality of A, B, C briquettes compared to market briquettes measured by their heating value is market briquettes has much lower heating value than A, B and C which are only 1507,46 calori.
 
Rancang Bangun Mesin “Tipipiel One†Pengolah Sampah Plastik Menjadi Biji Plastik Dengan Metode Pelletizing
Get PDFA modern human life is difficult to be separated from plastic. According to data from the Ministry of Environment (KLH), the population of Indonesia produces 0.8 kg of waste per person every day with a total of 189 thousand tons of waste per day, while 15% of this result is plastic waste with a total of 28.4 thousand tons of plastic waste. per day. The plastic waste will accumulate if left continuously without any processing, so that it can cause environmental problems and can cause health problems. Therefore, the "Tipipiel One" machine was made as an alternative to process plastic waste, especially the type of Polyethylene Terephthalate (PET) into plastic pellets using the pelletizing method which consists of four processes, that is melting, printing, cooling and cutting until plastic pellets are produced. The success of making the "Tipipiel One" machine can be seen from the quality of the plastic pellets produced by the machine. The optimal temperature for melting Polyethylene Terephthalate (PET) plastic waste using the "Tipipiel One" machine is 200 oC. The capacity of this machine only reaches 0.08 kg/hour due to the very small barrel size. Meanwhile, the electrical energy required for the "Tipipiel One" engine for 8 hours of operation is 9.372 kWh. With the "Tipipiel One" machine, it is hoped that it can reduce the pile of garbage in the environment and prevent environmental pollution caused by plastic waste
Analisis Daya Elektrik dan Efisiensi dengan Variasi Debit Air dan Sudut Kemiringan Turbin pada Turbin Ulir Archimedes Dua Sudu
No full textThis study analyzes the effect of water discharge and the angle of inclination of the turbine on electrical power and efficiency using Archimedes screw turbine with two blades. This study aims to determine the effect of water discharge and the angle of inclination of the turbine on the electrical power and efficiency of the two-blade Archimedes screw turbine. The turbine is fed with water at variations of water discharge of 150 l/m, 300 l/m, 450 l/m. And vary angle of inclination of the turbine of 35°, 40°, and 45°. By using the variation of the water discharge that has been mentioned, the electrical power and efficiency obtained are 1,24 W and 9,78 % at a variation of 150 l/m, 2,89 W and 10,77 % at a variation of 300 l/m, and 3,65 W and 9,06 % at a variation of 450 l/m. When varying the angle of inclination, the electrical power and efficiency obtained are 3,33 W and 10,77 % on a slope of 35°, 3,65 W and 10,53 % on a slope of 40°, and 3,15 W and 8,6 % on a variation of 45°.Penelitian ini menganalisis pengaruh debit air dan sudut kemiringan turbin terhadap daya dan efisiensi listrik menggunakan turbin ulir Archimedes dengan dua sudu yang terhubung dengan generator. Penelitian ini bertujuan untuk mengetahui pengaruh debit air dan sudut kemiringan turbin terhadap daya listrik dan efisiensi turbin ulir Archimedes dua sudu. Turbin dialiri air dengan variasi debit air 150 l/m, 300 l/m, 450 l/m dan memvariasikan sudut kemiringan turbin sebesar kemiringan 35°, 40°, dan 45°. Dengan menggunakan variasi debit air yang telah disebutkan diperoleh daya dan efisiensi listrik sebesar 1,24 W dan 9,78 % pada variasi 150 l/m, 2,89 W dan 10,77 % pada variasi 300 l/m, serta 3,65 W dan 9,06 % pada variasi 450 l/m. Pada variasi sudut kemiringan diperoleh daya dan efisiensi listrik sebesar 3,33 W dan 10,77 % pada kemiringan 35°, 3,65 W dan 10,53 % pada kemiringan 40°, dan 3,15 W dan 8,6 % pada variasi 45°
The Influence of Fillet Step on Backward-Facing Step Flow Characteristics
Get PDFBackward-facing step (BFS) is a model that provides several applicative features in engineering. The complex phenomena of BFS flow have a crucial impact on any application. Therefore, this study comprehensively investigates the flow characteristics of BFS with various step shapes. The backward-facing step (F-BFS) fillets were tested at intervals of Reynolds number 50 smaller than Re smaller than 400 using the CFD approach. Based on the computational results, it was found that flow separation is a fundamental phenomenon in BFS flow. Due to sudden expansion, Flow separation forms a recirculation area which continues to increase almost linearly with an increase in the Reynolds number. The recirculation area contains unstable rotating vortexes, which can impact the flow efficiency of BFS. Using a different step shape proves that F-BFS can minimize the recirculation area to increase the efficiency of the BFS flow.
 
The Robot Design Rancang Bangun Robot Pembersih Solar PV Dengan Sistem Pengendali Nirkabel
No full textOne type of renewable energy source that is starting to be widely used at this time is the type of solar power generation. This system uses a photovoltaic effect where sunlight is converted into electricity. A solar cell usually consists of an arrangement of semiconductors cells often called solar PV modules. Obstacles arise when this PV module is dirty because the electrical power generated by the module becomes decreased. Manual cleaning is one of the ways to restore power to this PV. In this study, a cleaning robot machine has been designed and made that can clean solar PV modules automatically. The purpose of the study is to simplify the module maintenance process, ensure the safety and security of workers, reduce module damage, and ensure the cleanliness of the module. The design method has successfully made a robotic machine to clean solar PV modules. The test results also prove that the tool made can clean the module quickly and safely