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All Journal JURNAL SAINS PERTANIAN EQUATOR Jurnal Inspirasi Pendidikan Wacana, Jurnal Sosial dan Humaniora JOURNAL OF EARTH ENERGY ENGINEERING Jurnal Administrasi Pendidikan Indonesia Mesin JURNAL TEKNIK HIDRAULIK JURNAL SUMBER DAYA AIR Joined Journal (Journal of Informatics Education Seminar Nasional Insinyur Profesional (SNIP) Student Scientific Creativity Journal Jurnal Akademik Pengabdian Masyarakat Jurnal Publikasi Ilmu Komputer dan Multimedia
Sarwono Sarwono
State University of Malang
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Performance Comparison of CFC12, HCR12 and HCR12+LFS as Refrigerants Nila Damitri; C Soekardi; B. T Prasetyo; Sarwono Sarwono; Kafi'uddin Kafi'uddin; A Suwono; A. D Pasek; N. P Tandian
Mesin Vol. 14 No. 2 (1999)
Publisher : Mesin

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Abstract

Additional concern about warming of the global environment through the greenhouse effect has necessitated selection of compounds with shorter atmospheric lifetimes and higher energy efficiencies as substitute refligerants for Heating, Air Conditioning, and refrigerating equipment.Several substitute compounds of the hidrocarbon were identified by similarities in normal boiling points and corresponding saturated vapor pressure characteristics. Sample quantities were obtained from ITB (Two sample corresponds with CFCIZ named Hycool HCRI2 and Hycool HCR12+LFS). Performance comparisons among these refrigerants are performed utilizing Air Conditioning System test facility in Laboratory for Thermodynamics, Engines and Propulsion System (LIMP "“ BPP Teknologi). The results show that these alternatives refrigerants exhibit better performance than CFC I 2 at the predetermined operating conditions.
Stuck Pipe Detection in Geothermal Operation with Support Vector Machine Sarwono Sarwono; Lukas; Maria Angela Kartawidjaja; Raka Sudira Wardana
Journal of Earth Energy Engineering Vol. 11 No. 2 (2022)
Publisher : Universitas Islam Riau (UIR) Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jeee.2022.9258

Abstract

One of the biggest problems during drilling operation is a stuck pipe in which the drill string would stick or freeze in the well. This challenge leads to a significant amount of remedial costs and time. Many researchers have investigated different factors regarding the stuck pipe. These factors include poor hole cleaning, improper mud design, key seating, balling up of bit, accumulation of cutting and caving, poor bottom hole assembly configuration, and differential pressure. Since geothermal drilling targets lost circulation zones at reservoir depth, the chance of getting stuck pipe events becomes higher. Many publications reported that lost circulation events that lead to stuck pipe events have become the top non-productive time (NPT) contributor to costs in many geothermal drilling projects. The consequences of a stuck pipe are very costly, that include lost time when releasing the pipe, time, and cost of fishing out the parted Bottom Hole Assembly (BHA), and efforts to abandon the tool(s) in the hole. Despite many observations that have been done to develop a system in avoiding stuck pipe incidents in oil and gas drilling operations using artificial intelligence (AI), few works have been developed for geothermal drilling operations. In this research, we propose a method to build an early warning system model for stuck pipe conditions based on a Support Vector Machine. Based on the experiment result Support Vector Machine Algorithm showed good performance with 89% accuracy and 81% recall for limited training dataset.
Studi Kelayakan Pembangunan Bendungan Gergaji Way Biha – Kabupaten Pesisir Barat Sarwono Sarwono
Seminar Nasional Insinyur Profesional (SNIP) Vol. 1 No. 1 (2021): Prosiding SNIP Vol.1 No.1
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.996 KB) | DOI: 10.23960/snip.v1i1.136

Abstract

Lampung adalah salah satu daerah yang memiliki hasil pertanian padi lebih banyak daripada jumlah konsumsi daerah Lampung sendiri. Oleh karena itu Lampung menjadi salah satu daerah lumbung padi nasional Bendungan Way Biha adalah salah satu infrastruktur penunjang pertanian dan bidang bidang lainnya. Bendungan Way Biha berfungsi sebagai sarana untuk mengatur dan mengalirkan pasokan air. Baik sebagai air baku, sebagai penyedia air irigasi dan juga kepentingan kepentingan lain. Di daerah sekitar Tujuan dari penelitian ini adalah Mengevaluasi studi kelayakan bendungan Way Biha dari aspek ekonomi dan menganalisis besaran nilai kelayakan ekonomi bendungan Way Biha. Metode yang digunakan dalam analisis ini adalah analisis ekonomi teknik. Hasil dari analisis ini Dari hasil analisis ekonomi teknik yang telah dilakukan dihasilkan nilai NPV adalah 21.432.612.389 dan 159.718.421.440, untuk nilai IRR berada pada nilai 15 – 17%, nilai BCR untuk analisis ini adalah 10 Kesimpulan dari penelitian ini adalah dinyatakan dari nilai NPV>0 Payback period pada ta-hun ke 5 nilai IRR >13% dan BCR >1 dan memenuhi nilai kelayakan secara ekonomi
KUALIFIKASI PENDIDIKAN NONFORMAL APARATUR PEMERINTAH DESA: STRATEGI DAN TANTANGAN Rida Rimadani; Sarwono Sarwono; I Gede Eko Putra Sri Sentanu
Jurnal Administrasi Pendidikan Vol 16, No 2 (2019): OCTOBER 2019
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jap.v26i2.21332

Abstract

Pengembangan E-learning berbasis moodle untuk mengatasi gaya belajar siswa kelas X DKV di SMK PGRI 2 Taman. Sarwono Sarwono; R Irlanto Sudomo; Handini Arga Damar Rani
Joined Journal (Journal of Informatics Education) Vol 6 No 1 (2023): Volume 6 Nomor 1 (2023)
Publisher : Universitas Ivet

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/joined.v6i1.2541

Abstract

Hasil penelitian menunjukan bahwa pelaksanaan pembelajaran daring berbasis LMS Moodle ini berjalan sesuai dengan tahap perencanaan, tahap pelaksanaan dan tahap evaluasi, Sebelum pelaksanaan pembelajaran informatika secara daring ini guru merencanakan untuk mempersiapkan rencana pembelajaran baik kurikulum, silabus, RPP yang sesuai dengan hasil yang diharapkan, Pelaksanaan pembelajaran daring berbasis moodle ini juga sudah berjalan sesuai dengan konsep pembelajaran daring dimana siswa mampu mengoperasikan, mengakses dan memanfaatkan E-larning dengan baik. Evaluasi pembelajaran daring melalui E-learning dilakukan oleh pihak sekolah dengan melakukan monitoring terhadap semua pengguna E- learning. Selain itu evaluasi dalam proses pembelajaran khususnya mata pelajaran informatika dilaksanakan kapanpun, di manapun oleh guru terkait dan penilaiannya sudah tertera di dalam E-learning.
Strategic Management of Maternal and Child Health Services Improve Public Health Degree (Study on Implementation of SUTERA EMAS and EMAS Program in Malang Regency) Laily Akbariah; Sarwono Sarwono; Endah Setyowati
Wacana Journal of Social and Humanity Studies Vol. 21 No. 1 (2018)
Publisher : Sekolah Pascasarjana Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1100.706 KB)

Abstract

Implementation of strategic management at the mother and children health services in Malang Regency is done through Sutera Emas and Emas Program. Both programs is grand strategy of Malang Regency to increase the societal health level measured from the AKI and AKB indicators. For that, the research aimed at describing and analyzing the implementation of Sutera Emas and Emas Program based on strategic management perspective, and identifying the obstacles occurred and producing alternative strategy for acceleration in decrease the AKI and AKB. So the used research method is qualitative by using descriptive analysis and foresight Approaches and Methods. The results showed that the implementation of Sutera Emas and Emas Programs are societal based program that use information technology to decrease AKI and AKB in Malang Regency. But the implementation of both program unable to be implemented wholly in Malang Regency. Because of that, it need alternative strategy for AKI and AKB decrease acceleration based on need assessment. The alternative strategy then be simulated based on three regions based on the criteria of standby village strata and the affordability of health service, either from the health service worker or health facilities.
Evaluation of Village Government Performance in Implementing the Village Development Movement Program (GERDEMA) in Long Bila Village, West Malinau District, Malinau Regency Figries Niagara; Sarwono Sarwono; Riyanto Riyanto
Wacana Journal of Social and Humanity Studies Vol. 22 No. 4 (2019)
Publisher : Sekolah Pascasarjana Universitas Brawijaya

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Abstract

Villages are an important part of spearheading an autonomous and sovereign democracy. Where the village has original autonomous rights based on customary law, can determine the composition of the government, regulate and manage households, and have wealth and assets. An important part in the implementation of development in the Village is the Village Government which is a strategic part of development. Village Government is a device that runs the government with other institutions and all products that are born by Village institutions. Where the village head has an important role in coordinating the performance of all institutions in the village. However, it cannot be denied that the implementation of the Village Government until now still faces a number of problems. As well as the obstacles faced by the current village administration, namely the low performance of village institutions, village government governance and community services. This problem affects the achievement of policy objectives.
PENGARUH KOMPOS TANDAN KOSONG KELAPA SAWIT DENGAN DEKOMPOSER Trichoderma harzianum TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SELEDRI PADA TANAH ALUVIAL Sarwono Sarwono; Inpurwanto Inpurwanto; Maulidi maulidi
Jurnal Sains Pertanian Equator Vol 7, No 2 (2018): April 2018
Publisher : Fakultas Pertanian Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (222.595 KB) | DOI: 10.26418/jspe.v7i2.24367

Abstract

Penelitian ini bertujuan untuk mengetahui dosis kompos Tandan Kosong Kelapa Sawit (TKKS) dengan dekomposer Trichoderma harzianumyang terbaik terhadap pertumbuhan dan hasil tanaman seledri pada tanahaluvial.Penelitian dimulai sejak tanam sampai panen dari tanggal 6 februarisampai tanggal 26 Maret 2015. Lokasi penelitian dilaksanakan di kebun percobaan Fakultas Pertanian Universitas Tanjungpura Pontianak.Metode yang digunakan adalah eksperimen lapangan dengan Rancangan Acak Lengkap (RAL) yang terdiri dari 6 perlakuan, 4 ulangan dan setiap ulangan terdapat 4 sampel tanaman, jumlah keseluruhan tanaman sebanyak 96 tanaman. Perlakuan sebagai berikut: (t0)pemberian 0,00 g kompos TKKS,(t1)pemberian 30,25 g kompos TKKS/polibag setara dengan 10% bahan organik, (t2) pemberian 257,12 g kompos TKKS/polibag setara dengan 13% bahan organik, (t3)pemberian483,99 g kompos TKKS/polibag setara dengan 16% bahan organik, (t4)pemberian 710,87g kompos TKKS/polibagsetara dengan 19% bahan organik, dan(t5) pemberian937,74 g kompos TKKS/polibag setara dengan 22% bahan organik. Variabel pengamatan : tinggitanaman (cm), jumlahdaun (helai), volume akar (cm3), beratsegartanaman (g), beratkeringtanaman(g), klorofildaun (Spad Unit), danJumlahAnakan.Hasil penelitian menunjukkan bahwa pemberian kompos  TKKS dengan dekomposer Trichoderma harzianummemberikan pertumbuhan dan hasil yang baikterhadap pertumbuhantanaman seledripada tanah aluvial. Semakin bertambah dosiskompos TKKS dengan dekomposer Trichoderma harzianummakapertumbuhan dan hasil tanaman seledri juga semakin meningkat.
Problem Solving Mahasiswa Dalam Menghadapi Tantangan Dunia Kerja Alimatul Fitri Assholekhah; Anisa Fitriani; Sarwono Sarwono; Sidiq Ali Fatoni; Meity Suryandari
Student Scientific Creativity Journal Vol. 1 No. 1 (2023): Januari: Student Scientific Creativity Journal
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/sscj-amik.v1i1.1132

Abstract

Mahasiswa sering disebut sebagai kaum intelektual karena keistimewaannya dalam mengenyam pendidikan tinggi. Sebagai kaum intelektual, tentunya mahasiswa dituntut untuk memiliki kualitas intelektual yang memadai. Baik dari Hard skill dan soft skill sebagai keterampilan nilai-nilai spiritualnya. Namun, disamping itu terdapat suatu tantangan ataupun masalah yang seringkali disebut orang sebagai kesulitan, hambatan, gangguan, ketidakpuasan, atau kesenjangan. Dalam dunia kerja, mahasiswa akan mengalami suatu tantangan dalam proses kuliah dan kerjanya. Mahasiswa harus mampu untuk mengatur dan mengelola waktunya dengan baik. sehingga diantara keduanya dapat berjalan dan tidak mengganggu aktivitas atau kegiatan yang lainya. Maka dari itu pemecahan masalah adalah suatu proses ilmiah seseorang yang melalui sebuah fase dari pemahaman masalah untuk kemudian mencari informasi yang diperlukan untuk diputuskan solusi pemecahannya dan dievaluasi solusinya. Artinya bahwa seseorang yang menghadapi suatu masalah harus mencari sumber informasi dari akar permasalahan tersebut terlebih dahulu. Sehingga seseorang itu akan dengan mudah memutuskan sebuah solusi yang akan dipakainya dalam memecahkan suatu masalah.
Pembentukan Kelompok Belajar Efektif Berbasis Algoritma Clustering untuk Meningkatkan Kualitas Pembelajaran di SD Negeri Ganrang Jawa II Muhammad Ikhwan Mardin; Sigrid Tamriesfatno; La Ode Muh. Armadi AM; Sarwono Sarwono; Muhamad Irwin Syawal; Riska Kherani; Muhammad As'ad; Sarni Alex Sandra
JURNAL AKADEMIK PENGABDIAN MASYARAKAT Vol. 4 No. 1 (2026): Januari
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/japm.v4i1.8926

Abstract

This community service program aims to form effective student learning groups based on clustering algorithms to improve the quality of learning at SD Negeri Ganrang Jawa II. The main problem faced by teachers is the difficulty in dividing students into learning groups evenly based on academic ability, as well as students’ tendency to choose their own friends when working in groups. These conditions result in unbalanced and less effective learning groups. To address this problem, the K-Means Clustering algorithm is applied to group students based on academic scores, so that each group consists of students with high, medium, and low abilities. The service method includes collecting student academic data, implementing the clustering algorithm, and assisting teachers in applying the learning groups. The results show that the distribution of learning groups becomes more balanced, student interaction increases, and the learning process runs more effectively. Therefore, the application of clustering algorithms can serve as an innovative solution to support collaborative learning strategies in elementary schools.
Co-Authors A Suwono A. D Pasek Ahmad Ahmad ahmad musawir Alimatul Fitri Assholekhah Alman Arapa Anisa Fitriani B. T Prasetyo Bambang Setiyono C Soekardi Chatarina Muryani djoko subandriyo Endah Setyowati Figries Niagara Handini Arga Damar Rani Hermawan Hermawan Ibnu Suprianto Imam Hanafi Inpurwanto Inpurwanto Kafi'uddin Kafi'uddin Kirno Kirno La Ode Muh. Armadi AM La Ode Yusran Syarif Laily Akbariah Lintang Ronggowulan Lukas M. Yogi Riyantama Isjoni Maria Angela Kartawidjaja Maulidi Maulidi Meity Suryandari Mr. I Gede Eko Putra Sri Sentanu Muhamad Irwin Syawal Muhammad As'ad Muhammad Ikhwan Mardin N. P Tandian Nila Damitri Pipit Wijayanti RAKA SUDIRA WARDANA Rida Rimadani Riska Kherani Rita Noviani Riyanto Riyanto Sarliadin Sarliadin Sarni Alex Sandra Setya Nugraha Sidiq Ali Fatoni Singgih Prihadi Sudomo, R. Irlanto Sugiyanto Sugiyanto T Hardianto T. A Soelaiman Tamriesfatno, Sigrid Ulfah Khairani Ramadhan Yunus Aris Wibowo