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All Journal Proceedings of Annual International Conference Syiah Kuala University - Social Sciences Chapter Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Didaktik Matematika Intelektualita JURNAL ILMIAH MATEMATIKA DAN TERAPAN JURNAL SERAMBI ILMU Jurnal Kesehatan Manarang JMS : Jurnal Manajemen Sinergi Jurnal Serambi Engineering AkMen JURNAL ILMIAH EQIEN - JURNAL EKONOMI DAN BISNIS Jurnal Kajian Pendidikan Ekonomi JISIP: Jurnal Ilmu Sosial dan Pendidikan INTEK: Jurnal Penelitian Jurnal Bisnis Terapan Jurnal Matematika UNAND Jurnal Teknologi Elekterika Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Pijar MIPA Jurnal Teknik Mesin Sinergi Jurnal Rekayasa Kimia & Lingkungan Jurnal ELTEK Jurnal Natural Aceh International Journal of Science and Technology

Marwan Marwan

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Author-ID : 472712

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Nursing Physics Public Health Social Sciences Other

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TEOREMA TITIK TETAP DI RUANG NORM-2 (R n, k., .k2) MARWAN MARWAN; SHELVI EKARIANI; HARIPAMYU HARIPAMYU
Jurnal Matematika UNAND Vol 10, No 1 (2021)
Publisher : Jurusan Matematika FMIPA Universitas Andalas Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jmu.10.1.116-128.2021

Pada penelitian ini akan dibahas teorema titik tetap di ruang norm-2 (Rn, k., .k2). Teorema titik tetap merupakan teorema yang menyatakan eksistensi dan ketunggalan titik tetap. Norm-2 k., .k2 didefinisikan sebagai kx, yk2 := det x · x x · y y · x y · y 1 2 dengan x, y ∈ Rn. Pasangan terurut ruang vektor Rn dengan norm-2 k., .k2 disebut ruang norm-2(Rn, k., .k2). Ruang norm-2(Rn, k., .k2) merupakan ruang banach artinya ruang norm-2(Rn, k., .k2) bersifat lengkap. Ruang norm-2(Rn, k., .k2) bersifat lengkap dibuktikan dengan cara menunjukkan ekivalensi antara norm dengan norm baru. Norm baru ini dibagun dari norm-2 k., .k2 dengan menggunakan dua vektor yang bebas linier. Teorema titik tetap menyatakan jika pemetaan T : Rn → Rn dari ruang norm-2 lengkap (Rn, k., .k2) merupakan pemetaan kontraktif maka T memiliki titik tetap yang tunggal.Kata Kunci: Norm, Ruang norm-2, Teorema Titik Tetap.

Performansi Response Time Query Pada Hadoop-Hive Menggunakan Metode Partition Marwan Marwan; Zawiyah Saharuna; Rini Nur
Jurnal Teknologi Elekterika Vol 18, No 1 (2021): Mei
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/elekterika.v5i1.2313

Hive menggantikan teknik pemrosesan tradisional RDBMS yang tidak dapat digunakan pada big data. Tetapi, Hive dengan kondisi default akan mencari data secara menyeluruh saat mengeksekusi query. Metode partition mampu mengelompokkan data, sehingga dilakukan pengujian untuk mengetahui apakah dengan mengelompokkan data akan memberikan peningkatan performansi response time query atau sebaliknya. Pada penelitian ini, dibangun infrastruktur Hadoop cluster dengan sistem multi node menggunakan virtual machine. Dataset yang digunakan adalah dataset Movielens dengan kardinalitas atribut yaitu 5, 50 dan 100. Tiap dataset terdiri dari 15 juta records data. Berdasarkan hasil penelitian, metode partition selain mampu mengelompokkan data juga memberikan performansi response time query yang lebih cepat sebesar 30.8% dibandingkan kondisi default. Selain itu, Metode partition saat kardinalitas 100 lebih baik dibandingkan dua kardinalitas yang lebih kecil yaitu kardinalitas 5 dan kardinalitas 50.

Developing of A Hierarchical Interface On-Line Data From Scada Systems To ERP Systems Marwan Marwan
Jurnal Teknik Mesin Sinergi Vol 6, No 2 (2008): Oktober 2008
Publisher : Politeknik Negeri Ujung Pandang

The purpose of this research is to address the problem of on-line data interconnectivity with development of a hierarchical interface which will be able to interchange on-line data from SCADA (Supervisory Control and Data Acquisition) systems to business process systems such as Enterprise Resource Planning (ERP) systems. Some preliminary investigation has been conducted such as the function of real-time data acquisition and monitoring systems of a water utility, and data filtering using a real-time compression algorithmic approach. In order to achieve the aim and objectives of this research, further modelling must be conducted such as refining the filtering algorithm, modelling systems and data hierarchy, identifying system related criteria and developing a hierarchical interface database.

Analisis Kualitas Tenaga Listrik Jaringan Distribusi Sekunder PT. PLN (Persero) Rayon Makassar Barat Marwan Marwan
Jurnal Teknik Mesin Sinergi Vol 7, No 1 (2009): April 2009
Publisher : Politeknik Negeri Ujung Pandang

Tujuan dari penelitian ini adalah untuk mengetahui kualitas tenaga listrik jaringan distribusi sekunder PT. PLN (Persero) Rayon Makassar Barat. Metode penelitian yang dilakukan adalah dengan menggunakan metode statistic. Langkah awal dari penelitian ini adalah dengan mengambil data tegangan, factor daya dan frekuensi pada trafo jenis UPAI. Kemudian dilanjutkan dengan menghitung besarnya nilai rata-rata dari variable kulitas yang diukur, mencari nilai standar deviasi dan menghitung nilai distribusi t serta mencari nilai tp dari table distribusi. Langkah terakhir adalah melakukan uji hipotesis untuk setiap variable seperti tegangan, factor daya dan frekuensi dengan menggunakan metode statistik. Dari hasil analisis diperoleh bahwa sistem kelistrikan PT. PLN (Persero) rayon Makassar barat pada variable tersebut diatas masih memenuhi standar kualitas.

Local Content Integration Model and the Value of Science Characters in Students Junior High School In Banda Aceh Ibrahim Ibrahim; Nurul Akmal; Almukarramah Almukarramah; Marwan Marwan; Yahya Don; Mohd Isha Awang
JURNAL SERAMBI ILMU Vol 23, No 2 (2022): Jurnal Serambi Ilmu
Publisher : UNIVERSITAS SERAMBI MEKKAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/si.v24i2.4781

In implementing the teaching and learning process with Islamic characters in junior high schools, it is carried out based on the 2013 character curriculum. In the teaching materials, teachers must be able to relate the pattern of human life to socio-cultural values, religion and ways of interaction in Islamic Acehnese society. This study aims to know how patterns and ways to integrate science values with character and how students' attitudes change after the learning process at SMP Negeri Banda Aceh. The population in this study were all public junior high school students in five regions in Aceh whose character represented the area. The sample consisted of 102 third grade students who were taken randomly.They follow the learning process by integrating character values in three meetings with teaching materials on ecosystems and the interaction of living things with the environment which ends with a post test to get the value of student learning outcomes. The data processing method uses t-test statistics. the results of the study showed that there was an increase in student achievement after using the integration model in learning with ecosystem and environmental teaching materials. We also believe that the model of integrating local wisdom values is able to shape the character of students, so it needs support from all parties for implementation in the field.

PENGARUH BEBAN KERJA DAN STRES KERJA TERHADAP KINERJA KARYAWAN DI PT. BANK MALUKU MALUKU UTARA CABANG TERNATE Farnida Esa; Marwan Marwan; Nurlaila Nurlaila
Jurnal Manajemen Sinergi Vol 8, No 2 (2020): JURNAL MANAJEMEN SINERGI (EDISI OKTOBER)
Publisher : Program Studi Manajemen Fakultas Ekonomi dan Bisnis Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jms.v8i2.5072

Objective: The purpose of this study are: (1) To determine andanalyze the effect of workload on employee performance at PT.Bank Maluku North Maluku Ternate Branch; (2) To find out andanalyze the effect of work stress on the performance ofemployees of PT. Bank Maluku North Maluku Ternate Branch;and (3) To find out and analyze the effect of workload and workstress on employee performance at PT. Bank Maluku NorthMaluku Ternate Branch. The number of research samples was43 employees. Bank Maluku North Maluku Ternate Branch.Methodology: The test equipment used is multiple linearregression analysis (multiple regression) using statisticalpackage for social scientists (SPSS) as a statistical test tool.Finding: H1 H2, and H3 are accepted at the 5% confidence levelConclusion: The results of the study show that: (1) workload hasa positive and significant effect partially on employeeperformance at PT. Bank Maluku North Maluku Ternate Branch.The results of this study mean that, employee workload is ableto improve employee performance; (2) Job stress has a positiveand significant effect partially on employee performance at PT.Bank Maluku North Maluku Ternate Branch. The results of thisstudy mean that, the work stress experienced by employees isable to improve employee performance; and (3) Workload andwork stress simultaneously have a positive and significant effecton PT. Bank Maluku North Maluku Ternate Branch.

Produksi Biodiesel dari Ampas Kelapa (Coconut Waste) Secara Transesterifikasi In Situ Menggunakan Bantuan Gelombang Mikro Lancy Maurina; Marwan Marwan; Muhammad Dani Supardan
Jurnal Rekayasa Kimia & Lingkungan Vol 12, No 2 (2017): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Biodiesel merupakan bahan bakar alternatif pengganti minyak diesel berbasis fosil. Upaya mendapatkan bahan baku yang murah dan ekonomis untuk memproduksi biodiesel perlu terus dilakukan. Penelitian ini bertujuan untuk mempelajariproses produksi biodiesel dari limbah ampas kelapa menggunakan proses transesterifikasi in situ dengan bantuan gelombang mikro. Proses transesterifikasi in situ dilakukan pada daya mikrowave 450, 600 dan 800 watt, waktu reaksi 3-6 menit, rasio molar metanol 10:1 hingga 25:1 dan jumlah katalis KOH 2-5%. Hasil penelitian menunjukkan bahwa, rendemen biodiesel tertinggi adalah sebesar 98,23% pada kondisi daya mikrowave 800 watt, waktu reaksi 4 menit, rasio molar pelarut 20:1 dan konsentrasi katalis KOH 4%. Hasil pengujian mutu biodiesel dari hasil penelitian ini adalah viskositas kinematik 2,7 mm2/s, densitas 850 kg/m3 dan angka asam 0,4 mg-KOH/g. Komposisi asam lemak biodiesel dari ampas kelapa adalah methyl laurate (29,41%), methyl oleate (21,05%), methyl myristate (20,21%), methyl palmitate (14,18%), methyl caprate (6,94%), methyl linoleate (5,47%) dan methyl octanoate (2,25%).

ANALISIS KOORDINASI ZONA AREA PROTEKSI PLTU MAMUJU DAN TRAFO GI MAMUJU Nurhayati Rasyid; Ahmad Rizal Sultan; Marwan Marwan
JURNAL ELTEK Vol 16 No 2 (2018): ELTEK Vol 16 No 2
Publisher : Politeknik Negeri Malang

Koordinasi zona area proteksi PLTU Mamuju dan Trafo GI Mamujuterkoordinasi melalui sistem proteksi, salah satu proteksi utama yaiturelay. Dalam penentuan setting relay, antara satu titik relay yang beradapada PLTU Mamuju dan relay yang berada pada Trafo GI Mamujuharus saling berhubungan sehingga koordinasi antara PLTU Mamujudan Trafo GI Mamuju dapat terkoordinasi dengan baik.Proteksi pada sistem tenaga listrik merupakan bagian yang sangatpenting dalam sistem ketanagalistrikan. Tujuan sistem proteksi adalahuntuk menimalisir gangguan atau melindungi sistem tenaga listrik dariakses gangguan yang terjadi pada sistem, jika sistem proteksi tidak baik,maka mengakibatkan menurunnya keandalan sistem padapendistribusian tenaga listrik. Sehubungan dengan hal ini, sehinggapenelitian bertujuan untuk mengevaluasi sistem proteksi danmenganalisis jenis gangguan yang terjadi khususnya gangguan hubungsingkat. Metode yang digunakan dalam penelitian ini adalah denganmelakukan analisa secara sederhana, menghitung arus hubung singkatdan mengevaluasi sistem proteksi. Untuk menjustifikasi hasil analisayang diperoleh maka digunakan software Etap Power Station 16.0.0 dansoftware DigSilent Power Factory 15.1.7.

THE DIFFERENT MAGNETIC RESULTS OF ANEMI AND PPM MEASUREMENTS ON THE BURIED REMAINS OF A 13TH CENTURY FORTRESS Muhammad Yanis; Marwan Marwan; Bukhari Bukhari; Nazli Ismail
Jurnal Natural Volume 16, Number 2, September 2016
Publisher : Universitas Syiah Kuala

This study aimed to evaluate the different magnetic results of an electromagnetic induction with proton magnetometer measurements on an archaeological site. The electromagnetic induction allows measuring both the apparent magnetic susceptibility in part per thousand (ppt) and the apparent electrical conductivity in millisiemens (mS/m). A proton magnetometer measures the total magnetic intensity in nanotesla (nT), caused by the induced and remanent magnetisations. An archaeological site where historical documents indicated the presence of a 13th century fortress that built by Lamuri Sultanate was selected as a test area. The measurement were conducted by divided the study area into 10 profiles.Some standard data processing have been applied to the measured data. The result of the first survey with electromagnetic induction showed low magnetic anomalies in the buried remains of Lamuri fortress. The similar value are shown as well by low magnetic field intensity in magnetometer measurement.

Study of Seulawah Agam’s Geothermal Source Using Gravity Method Marwan Marwan; Ibnu Rusydy; Gartika Setiya Nugraha; Asrillah Asrillah
Jurnal Natural Volume 14, Number 2, September 2014
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar

Gravity method was carried out at Seulawah Agam Area to delineate the existence of geothermal source, which is specifically existed in both the geothermal filed of Heutsz’s Crater and.Cempaga’s Crater. The Seulawah Agam is located in Aceh Besar district. Geologically, the area is dominated by volcanic mudflow and Lam Teuba’s rocks having age from Tersier to Resen Period. The equipment used includes Gravimeter CG-5 Autograv, Portable GPS (Global Positioning System), Navigation type (map of the survey area), computer and the other technical supports, such as handy talky, umbrella, watch, pens and observed data notes. This research was conducted by doing two stages. Firstly, establishing the base station which is a reference point for all gravity data measurements at each point. Secondly, measuring gravity data at each point by repeating three times following looping pattern as pathway of measurement either in Heutsz’s crater whose nine points recording or in Cempaga’s crater whose seventeen points. The data was simply processed using Microsoft Excel that can just plot the Bouguer anomaly and interpreted qualitatively due to preliminary research. The resultof this research has shown that both areas have two kinds of Bougeur anomalies which slightly attract attention who’s high and low anomaly. At Heutsz’s Crater has high and low density existed at F125 FR and B6 point. The Point whose high density means that it was formed mineralization by hydrothermal process through fracture materials, meanwhile the point whose low density indicates that there is existed the fault which is quite related to Seulimum’s Fault based on Aceh map. This result is also same as obtained at Cempaga’s Crater which means also same interpretation. In addition, it can be sum up that fault zones are essentially important in geothermal system that plays vital role in term of fluid circulation. Employing the gravity method in this research effectively can be said

Co-Authors ., Haripamyu A. Hadi Mahmud Abd. Rasyid Syamsuri Abdullah Abdullah Ade Devriany Agus Indra Jaya Ahamad Rizal Sultan Ainul Mardhiah Almukarramah, Almukarramah Asrillah Asrillah Bansu Irianto Ansari Bukhari Bukhari Cut Musriliani Devi Nurfitiriani Qadarsih Edi Munawar Ekariani, Shelvi Fadhliah M Alhadar Fadillah Adnan Farnida Esa Gartika Setiya Nugraha Hendra Susanto Ibnu Rusydy Ibrahim Ibrahim Idris Syafrizal Istib Saroh Jannati T jimi ronald, jimi Kurniawati Naim Lancy Maurina M. Ikhsan Mohd Isha Awang Muhammad Dani Supardan Muhammad Muhammad Muhammad Yanis Muhammad Zaki Nani Suryani Nazli Ismail Novieza Novieza Nur Malasari Samsul Nurhayati Rasyid Nurlaila Nurlaila Nurul Akmal Rifqan Rifqan Rina Ratianingsih Rini Nur Ristiliana Ristiliana Ruslan L Said Hasan TATI NURHAYATI Wardani, Zenderi Yahya Don Yanis Muhammad Zawiyah Saharuna Zenderi Wardani

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