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All Journal International Journal of Science and Engineering (IJSE) G-Tech : Jurnal Teknologi Terapan Journal Innovation of Civil Engineering (JICE) SPEED - Sentra Penelitian Engineering dan Edukasi JTH: Journal of Technology and Health Bangunan
Eko Setyawan
Universitas Negeri Malang
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Library & Information Science Medicine & Pharmacology Nursing Transportation

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Essential Oil Extraction of Fennel Seed (Foeniculum vulgare) Using Steam Distillation Astrilia Damayanti; Eko Setyawan
International Journal of Science and Engineering Vol 3, No 2 (2012)
Publisher : Chemical Engineering Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (231.783 KB) | DOI: 10.12777/ijse.3.2.12-14

Abstract

Indonesia is a potential country in developing essential oils which is each part of the plants produce essential oils such as leaf, seed, fruit, and root. One of the potential plants is fennel. Fennel oil distillation used fennel seed from Cepogo District, Boyolali Regency. The characteristics of the seed are; the color is black and the length is 0,2 centimeters. The condition operation to exctract of the fennel seed are 1 atm and 7,5 hours. The calculation of the time started when the first fennel oil dropped into the decanter. It finished when the fennel oil was not dropped anymore. The color is bright and muddy. The last process is add 1% (m/m) Na2SO4 anhidrous into fennel oil to absorp remain water in it. The distillation process produce fennel oil102,125 grams. Sample of fennel oil tested which are density test, solubility on 90% alcohol, GC-MS test, and AAS test. The result shows that fennel oil from the fennel seed is 2,0425%. The tested samples contain the brightest and the muddies sample. The density of 0,9500 and 0,949 g/cc respectively that is not fulfill to  the Food Chemical Codex (FCC). Samples solubility in 90% alcohol (1:3) is fulfill to the the Food Chemical Codex (FCC).  Three main components of the brightest sample are anethole (47,51%), estragole (22,41%), and  α-fensone (21,92%) while the muddiest sample’s components are anethole (52,38%), estragole (21,37%),and α-fensone (15,74%). The AAS test shows that fennel oil contains 65,1473 ppm which does not fulfill the Indonesian National Standards of  patchouli and clove leaf oil. [Keywords— essential oil; extraction; fennel seed; steam distillation
Pembangunan Sistem Informasi Perpustakaan Sekolah Dasar Negeri (SDN) Pacitan Eko Setyawan .; Bambang Eka Purnama .
SPEED - Sentra Penelitian Engineering dan Edukasi Vol 4, No 3 (2012): Speed 2012
Publisher : APMMI - Asosiasi Profesi Multimedia Indonwsia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.603 KB) | DOI: 10.55181/speed.v4i3.179

Abstract

Abstract: SDN Pacitan library already has a wide collection of books, good books related to schoolsubjects as well as books that are not related to school subjects. However, the data processing onSDN Pacitan library is still using a conventional manner, ie, record data members, data books, databorrowers, data returns, and late return of books into a book-keeping. Library officials SDN Pacitandifficulties in data processing, such as when searching for data in the books of the borrower, otherthan that officer is also difficult to check the availability of the book, because it must be checked oneby one in the bookcase. To determine the amount of fines officer must look at the number of daysdelay in returning and multiplying it with a fine every day.Students who would like to borrow or return any book takes a long time, because they have towait for official records of books borrowed in the books. Students also have to wait long when it willreturn the book, because the officers had to find the borrower the data one by one in the books. Whenthe amount of data borrowers have many officers find it very difficult and time required to searchdatapun be longer.The main purpose of this penelitin is making the information systems that can be used for datacollection on the SDN Pacitan Library administration. The method taken by the authors observe,interview, library study, analysis, information system design followed by construction of informationsystems and the next is a trial. The results of this study is to provide ease of data processing libraries,such as data books, data books borrowers, data return the book, and to simplify the search processother than the data storage medium that has a more effective and larger.Keywords: Library Information System, Elementary School of the State PacitanAbstrak : Perpustakaan SDN Pacitan sudah memiliki berbagai koleksi buku, baik buku yang terkaitdengan pelajaran sekolah maupun buku-buku yang tidak terkait dengan pelajaran sekolah. Akantetapi proses pengolahan data pada perpustakaan SDN Pacitan saat ini masih menggunakan carayang konvensional, yakni mencatat data anggota, data buku, data peminjam, data pengembalian, dandenda keterlambatan pengembalian buku ke dalam sebuah pembukuan. Petugas Perpustakaan SDNPacitan kesulitan dalam proses pengolahan data, seperti ketika mencari data peminjam dalampembukuan, selain itu petugas juga kesulitan untuk mengetahui ketersediaan buku, karena harusmengecek satu-persatu dalam rak buku. Untuk mengetahui jumlah denda petugas harus melihatjumlah hari keterlambatan pengembalian dan mengalikannya dengan denda setiap hari.Siswa yang akan meminjam atau mengembalikan bukupun membutuhkan waktu yang cukuplama, karena harus menunggu petugas mencatat buku yang dipinjam dalam pembukuan. Siswa jugaharus menunggu lama ketika akan mengembalikan buku, karena petugas harus mencari datapeminjam satu-persatu dalam pembukuan. Ketika jumlah data peminjam sudah banyak petugasmerasa sangat kesulitan dan waktu yang dibutuhkan untuk mencari datapun akan semakin lama.Tujuan utama dari penelitin ini adalah pembuatan sistem informasi yang dapat digunakanuntuk pendataan administrasi Perpustakaan di SDN Pacitan. Metode yang diambil penulis yaitudengan melakukan observasi, wawancara, study pustaka, analisis, perancangan sistem informasidilanjutkan dengan pembangunan sistem informasi dan selanjutnya adalah uji coba. Hasil daripenelitian ini adalah untuk memberikan kemudahan dalam proses pengolahan data perpustakaan,seperti data buku, data peminjam buku, data pengembalian buku, dan untuk mempermudah dalamproses pencarian data selain itu memiliki media penyimpanan yang lebih efektif dan lebih besar.Kata Kunci : Sistem Informasi Perpustakaan, SDN Pacitan
Innovative Transformation of Analog to Digital Direct Shear Test Tool Based on Microcontroller with Wireless Data Acquisition System Maskur Efendi; Eko Setyawan
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6051

Abstract

Direct Shear Test (DST) is an important method for measuring soil shear strength in civil engineering applications. However, analog DST tools have limitations, such as low accuracy, low efficiency, and the need for manual data processing. This study aims to convert analog DST tools into digital ones using Arduino UNO R4 WiFi-based microcontroller technology and a wireless data acquisition system. This innovation replaces analog dial indicators with digital dial indicators to record shear force and horizontal displacement data automatically and in real-time. This system is designed to generate automatic test reports in the form of tables, graphs, and soil parameters, such as cohesion and angle of internal friction. The results show an accuracy rate of up to 90% compared to test results with commercial digital DST, better operational efficiency with only one operator, and a 30% reduction in testing time compared to using analog DST. With an implementation cost of less than 10% of commercial digital DST, this solution offers affordable modern testing technology for laboratories with limited budgets. This article discusses the technical design, hardware implementation, software development, and performance analysis of the resulting tool.
IMPLEMENTATION OF POROUS-WALLED INFILTRATION WELL DESIGN TO REDUCE SURFACE RUNOFF AT CAMPUS I STATE UNIVERSITY OF MALANG USING EPA SWMM 5.2 SOFTWARE Asa Faidho Rizkia Fahmi; Eko Setyawan; Vita Ayu Kusuma Dewi; Titi Rahayuningsih
Journal Innovation of Civil Engineering (JICE) Vol 5 No 2 (2024)
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jice.v5i2.23356

Abstract

The rapid expansion of urban activities at Universitas Negeri Malang has reduced rainwater infiltration and increased surface runoff, raising flood risks. At Campus I, the limited drainage capacity necessitates a green infrastructure-based solution. This study designs an optimal porous-walled infiltration well system and determines its quantity and distribution using EPA SWMM 5.2. Unlike previous studies, this research integrates site-specific permeability data from laboratory testing into the modeling process for greater accuracy. A descriptive quantitative approach was applied, with runoff discharge estimated using the Rational Method and permeability tested via the Falling Head Permeability Test. EPA SWMM 5.2 modeling, incorporating the Low Impact Development (LID) feature, was used to analyze flooding and assess system effectiveness. The findings provide recommendations for an optimized infiltration well design, offering a precise and adaptable rainwater management solution. Keywords: Infiltration Well; Porous Wall; Surface Runoff; EPA SWMM.
DECISION SUPPORT SYSTEM FOR SELECTING ATHLETE CANDIDATES IN PSTI BANTUL USING PROFILE MATCHING METHOD BASED ON WEB Eko Setyawan; Muhammad Fairuzabadi; Puji Handayani Putri
JTH: Journal of Technology and Health Vol. 1 No. 2 (2023): October: JTH: Journal of Technology and Health
Publisher : CV. Fahr Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61677/jth.v1i2.104

Abstract

PSTI Bantul is a sepak takraw club which is active in developing DIY sepak takraw athletes from an early age, teenagers and adults. A Decision Support System is an information system to assist in making decisions related to semi-structured and unstructured problems. The method used is profile matching, which utilizes technology to facilitate user access and interaction. Users can see the general profile matching calculation results in each period so that the selection process becomes more open and transparent, providing fair opportunities for each prospective athlete. From the research results, this system runs according to the function that has been designed, which is able to provide information on selection results from each period.
ANALISA STABILITAS LERENG DAN ALTERNATIF PERKUATAN TANAH PADA JALUR KERETA API CEPAT JAKARTA-BANDUNG MENGGUNAKAN APLIKASI PLAXIS 8.6 Ainun Nafis; Eko Setyawan; Mohammad Musthofa Al Ansyorie
Bangunan Vol. 26 No. 1 (2021)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um071v26i12021p29-44

Abstract

Masalah dalam perencanaan struktur jalan kereta seperti tinggi lereng embankment yang ≥ 6 m, tanah asli yang tergolong sedang lunak, dan merupakan daerah rawan terjadinya longsor merupakan alasan dilakukannya penelitian ini. Hal tersebut didukung oleh hasil uji lab tanah, kondisi geografis dan geologis Kabupaten Purwakarta berupa bukit dan lembah yang terbentuk dari endapan batuan sedimen dan aluvium vulkanik dengan kemiringan lahan 8-40%. Oleh karena itu penelitian ini bertujuan untuk mengetahui stabilitas lereng embankment berupa nilai safety factor pada jalur kereta cepat Jakarta-Bandung daerah konstruksi DK70+150.00 sampai DK70+181.88. Adapun analisis numerik yang dilakukan pada penelitian ini menggunakan program Plaxis 8.6 yang dikembangkan berdasarkan metode Finite Element dengan model Mohr-Coulomb. Proses analisis dengan menginput parameter material yang dibutuhkan berdasarkan Mohr-Coulomb. Hasil analisis berupa angka safety factor yang menunjukkan kondisi stabilitas suatu lereng embankment. Penambahan alternatif perkuatan lereng embankment berupa cerucuk (micropile), bronjong (gabion) dan geotextile sebagai upaya pencegahan adanya kelongsoran jangka pendek dan panjang pada lereng embankment yang tidak stabil. Hasil analisis lereng embankment kereta api cepat Jakarta-Bandung DK70+150 sampai DK70+181.88 kondisi eksisting sebesar ΣMSF = 1,1565 (cek global) dan ΣMSF = 1,0515 (cek dinamik gempa) yang artinya lereng dalam kondisi tidak stabil dan perlu penambahan alternatif perkuatan. Berdasarkan simulasi kombinasi alternatif perkuatan. Menunjukkan kombinasi alternatif perkuatan geotextile dengan micropile menghasilkan angka safety factor ΣMSF = 1,8151 (cek stabilitas global) dan ΣMSF = 1,6262 (cek stabilitas akibat beban dinamik gempa).
PERBANDINGAN DAYA DUKUNG AKSIAL PONDASI TIANG BOR TUNGGAL MENGGUNAKAN DATA STANDARD PENETRATION TEST (SPT) DAN PILE DRIVING ANALIZER (PDA) TEST PADA PROYEK PEMBANGUNAN JALAN TOL PANDAAN MALANG Nur Latifah Khomsiati; I Wayan Jirna; Eko Setyawan
Bangunan Vol. 24 No. 1 (2019)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um071v24i12019p25-32

Abstract

Hasil hitungan daya dukung pondasi tiang yang didasarkan pada teori mekanika tanah, sebaiknya perlu dicek dengan mengadakan pengujian tiang untuk meyakinkan hasilnya. Salah satu pengujian tiang yang dilakukan adalah Pile Driving Analyzer (PDA) Test. Penelitian ini membandingkan nilai daya dukung SPT menggunakan 3 metode yaitu Metode Meyerhof, Poulos Davis, dan Luciano Decourt dengan hasil daya dukung PDA Test serta mengetahui rumus perhitungan daya dukung SPT yang paling mendekati hasil PDA Test. Nilai daya dukung ultimit (Qu) pondasi tiang bor tunggal yang dihitung dengan Metode Meyerhof dan Luciano Decourt menggunakan data SPT sudah mendekati nilai daya dukung PDA Test. Sehingga daya dukung SPT dikatakan mampu memprediksi daya dukung pondasi dengan baik Sedangkan metode Poulos Davis hasilnya jauh dari metode lainnya karena tidak memperhitungkan koreksi nilai N-SPT. Nilai daya dukung hasil PDA relatif lebih besar dikarenakan itu pada saat pelaksanaan pengeboran tiang, bentuk dinding tiangnya tidak seragam sehingga luas ujung tiang dan selimut tiang bertambah dan menyebabkan daya dukung menjadi lebih besar. Metode yang paling mendekati hasil Qu PDA adalah Metode Meyerhof, terbukti ada tiga titik yang selisih nilai daya dukungnya kecil. Hal ini dikarenakan pada Metode Meyerhof dilakukan koreksi pada nilai N-SPT.
Co-Authors Ainun Nafis Asa Faidho Rizkia Fahmi Astrilia Damayanti Bambang Eka Purnama . I Wayan Jirna Lutfi Indah Apriyani Maskur Efendi, Maskur Mohammad Musthofa Al Ansyorie Mohammad Musthofa Al Mohammad Musthofa Muhammad Fairuzabadi Nur Latifah Khomsiati Nur Latifah Khomsiati Puji Handayani Putri Titi Rahayuningsih Vita Ayu Kusuma Dewi