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Pengolahan Lindi TPA Menggunakan Beberapa Metoda dan Prospekya Sebagai Pupuk Cair: Suatu Review Hasnelly Hasnelly; Syafrimen Yasin; Agustian Agustian; Darmawan Darmawan
Jurnal Sains Agro Vol 3, No 1 (2018): Jurnal Sains Agro
Publisher : Universitas Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (114.873 KB) | DOI: 10.36355/jsa.v3i1.198

Abstract

Tujuan tulisan ini adalah pertama, untuk mengetahui hasil penelitian sebelumnya tentang lindi, biochar dan mikroorganisme terhadap pemanfaatan lindi TPA. Kedua mengetahui metoda penelitian yang digunakan pada pengolahan lindi terhadap penurunan bahan berbahaya pada lindi dan pemanfaatan lindi sebagai sumber pupuk cair bagi tanaman. Metoda penelitian yang digunakan peneliti sebelumnya pada umumnya bertujuan untuk menurunkan kandungan bahan/zat yang berbahaya yang terkandung di dalam lindi TPA sehingga lindi TPA tersebut jika dibuang ke lingkungan tidak mencemari tanah, air dan lingkungan keseluruhan.  Hasil penelitian tersebut menunjukkan bahwa penggunaan berbagai metoda yang diterapkan dapat memperbaiki kandungan lindi TPA yaitu menurunkan kadar COD, BOD, kandungan logam berat, nitrat, sulfat, pH dan bahan lainnya sehingga aman dibuang ke lingkungan serta lindi TPA dapat digunakan sebagai sumber nutrisi bagi pertumbuhan tanaman. Namun dari penelitian tersebut belum ditemukan peranan biochar dan mikroorganisme pada lindi TPA sebagai bahan untuk pembuatan pupuk cair bagi tanaman. Kata kunci: lindi TPA, biochar, mikroorganisme, pupuk cair
Development of Client-Server Application by Using UDP Socket Programming for Remotely Monitoring CNC Machine Environment in Fixture Process Darmawan Darmawan; Pharmayeni Pharmayeni
Jurnal Rekayasa Elektrika Vol 12, No 2 (2016)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (639.647 KB) | DOI: 10.17529/jre.v12i2.2925

Abstract

The use of computer technology in manufacturing industries can improve manufacturing flexibility significantly, especially in manufacturing processes; many software applications have been utilized to improve machining performance. However, none of them has discussed the abilities to perform direct machining. In this paper, an integrated system for remote operation and monitoring of Computer Numerical Control (CNC) machines is put into consideration. The integrated system includes computerization, network technology, and improved holding mechanism. The work proposed by this research is mainly on the software development for such integrated system. It uses Java three-dimensional (3D) programming and Virtual Reality Modeling Language (VRML) at the client side for visualization of machining environment. This research is aimed at developing a control system to remotely operate and monitor a self-reconfiguration fixture mechanism of a CNC milling machine through internet connection and integration of Personal Computer (PC)-based CNC controller, a server side, a client side and CNC milling. The performance of the developed system was evaluated by testing with one type of common protocols particularly User Datagram Protocol (UDP).  Using UDP, the developed system requires 3.9 seconds to complete the close clamping, less than 1 second to release the clamping and it can deliver 463 KiloByte.
Development of Client-Server Application by Using UDP Socket Programming for Remotely Monitoring CNC Machine Environment in Fixture Process Darmawan Darmawan; Pharmayeni Pharmayeni
Jurnal Rekayasa Elektrika Vol 12, No 2 (2016)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v12i2.2925

Abstract

The use of computer technology in manufacturing industries can improve manufacturing flexibility significantly, especially in manufacturing processes; many software applications have been utilized to improve machining performance. However, none of them has discussed the abilities to perform direct machining. In this paper, an integrated system for remote operation and monitoring of Computer Numerical Control (CNC) machines is put into consideration. The integrated system includes computerization, network technology, and improved holding mechanism. The work proposed by this research is mainly on the software development for such integrated system. It uses Java three-dimensional (3D) programming and Virtual Reality Modeling Language (VRML) at the client side for visualization of machining environment. This research is aimed at developing a control system to remotely operate and monitor a self-reconfiguration fixture mechanism of a CNC milling machine through internet connection and integration of Personal Computer (PC)-based CNC controller, a server side, a client side and CNC milling. The performance of the developed system was evaluated by testing with one type of common protocols particularly User Datagram Protocol (UDP).  Using UDP, the developed system requires 3.9 seconds to complete the close clamping, less than 1 second to release the clamping and it can deliver 463 KiloByte.