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All Journal Agrifor : Jurnal Ilmu Pertanian dan Kehutanan KURVA S JURNAL MAHASISWA GEA, Jurnal Pendidikan Geografi Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) PERENNIAL Jurnal Riset Pembangunan : Media Hasil Penelitian dan Kajian Pembangunan Daerah Prosperity: Journal of Society and Empowerment Industrial and Domestic Waste Management Dinamika Journal of Internet and Software Engineering
Muhammad Syafrudin
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences

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STUDI TENTANG MODEL HIDROGRAF SATUAN SINTETIK PADA SUB DAS BAYUR SAMARINDA, KALIMANTAN TIMUR Syafrudin, Muhammad
Jurnal Pendidikan Geografi Gea Vol 8, No 2 (2008)
Publisher : Indonesia University of Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/gea.v8i2.1702

Abstract

The present research entitled Study of Synthetic Unit Hydrograph Model of Bayur River Basin at Samarinda, East Kalimantan was aimed to analyze and identify the best-suited synthetic unit hydrograph to apply in Bayur river basin. The research was carried out by developing models, and then those models were compared to main unit hydrograph based on 2004 field measurement. Comparative analysis was performed on two stages. The first was to calculate and compare three-unit hydrograph parameters (Tp, Qp and Tb) of two synthetic unit hydrograph to main unit hydrograph. Second stage was to develop direct runoff hydrograph of two synthetic unit hydrograph models and of the main unit hydrograph using rainfall data of April 9, 2004. Then, deviation percentage averages of the two synthetic direct runoff hydrograph were calculated. Through the two analysis stages, the best-suited synthetic unit hydrograph model to apply in Bayur river basin presumably was obtained by identifying smallest deviation percentage average on main unit hydrograph. By calculating deviation averages of direct runoff hydrograph in the two models of synthetic unit hydrograph, it was found that GAMA I model provided smallest deviation average compared Snyder model. Based on the two analysis, it was showed that GAMA I was the closest model to main unit hydrograph compared to Snyder model.Key word: synthetic unit hydrograph, river basin, direct runoff, Snyder model, GAMA I model.
PERENCANAAN AKADEMI KEPERAWATAN DI SAMARINDA DENGAN PENERAPAN LAMIN DAYAK DESA PAMPANG SYAFRUDIN, MUHAMMAD
KURVA S JURNAL MAHASISWA Vol 1, No 1 (2018)
Publisher : KURVA S JURNAL MAHASISWA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1260.718 KB)

Abstract

Perkembangan di dunia pendidikan di Indonesia saat ini sangat pesat. Semakin banyaknya minat pelajar untuk melanjutkan ke jenjang yang lebih tinggi pada bidang kesehatan salah satunya jurusan keperawatan. Berdasarkan data dari Kemenkes pada tahun 2015, beberapa wilayah Kaltim, terutama di kota Samarinda masih belum memenuhi standar minimal perawat. Akan tetapi, kebanyakan kampus Akademi Keperawatan (AKPER) di Samarinda belum memiliki fasilitas dan kebutuhan ruang belajar mengajar hingga praktek yang sesuai standar, serta masih bergabung dengan jurusan kesehatan yang lain dan belum mencerminkan Lokal yang ada. Sehingga diperlukan sebuah sebuah bangunan yang di dalamnya hanya yang menerapkan karakteristik arsitektur lokal yang ada di Samarinda dan fasilitas lengkap di dalamnya. Melalui pengumpulan data melalui survey, analisis data dan landasan program, kemudian memproses data-data yang telah diperoleh sehingga tercipta suatu kawasan kampus Akademi Keperawtan (AKPER) yang lengkap fasilitasnya dan memiliki karateristik Lamin Dayak khas desa budaya Pampang, kota Samarinda.
KANDUNGAN BEBERAPA POLUTAN DAN KADAR DEBU PADA DAUN KETAPANG (Terminalia catappa L.) DI KOTA SAMARINDA PROVINSI KALIMANTAN TIMUR: The Pollutant and Dust Contents in the Leaves of Terminalia catappa L. in Samarinda City East Kalimantan Province Yuliara Limbong; Karyati Karyati; Muhammad Syafrudin
PERENNIAL Vol. 17 No. 2 (2021): Vol. 17 No. 2, Oktober 2021
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v17i2.13965

Abstract

The vegetation has many roles, including the ability to reduce pollutants. Ketapang (Terminalia catappa L.) is a species of tree that is often recommended as a shade plant, because it has many advantages including as a pollutant reducing agent.The purposes of this study were to analyse the content of pollutants (lead (Pb), iron (Fe), and manganese (Mn)), and the dust content of ketapang leaves  and compare that pollutant and dust contents based on three area categories (highway, residential area, and vegetated area) in Samarinda City, East Kalimantan Province. The calculation of the number of vehicles that pass around the study site was carried out using the Traffic Survey application. Dimensional measurements of sample trees included diameter at breast height (DBH), tree height, and percentage of tree canopy. The analysis of pollutant contents was done by using AAS (Atomic Absorption Spectrophotometer) with a wet digestion process. The dust content was calculated using the formula where for the calculation of leaf area using millimeter blocks. The result showed that the highest Pb content (100.00 mg/kg), Fe content (347.00 mg/kg), and Mn content (564.00 mg/kg) were in ketapang leaves in Jalan M. Yamin, Jalan Pahlawan, and Jalan M. Yamin, respectively. The highest and lowest dust content were in ketapang leaves in Jalan Pahlawan (0.00316 g/cm2) and Perumahan Bumi Sempaja (0,00024 g/cm2). Based on the area categories, the highest Pb, Fe, Mn, and dust contents were in ketapang leaves that grow on the highway compared to residential and vegetated area. It can be caused by the large number of vehicles passing and canopy density. Information on the pollutant and dust contents in tree leaves can be taken into consideration in selecting plants in different areas.
STUDI TENTANG PENGARUH INTENSITAS HUJAN DAN KERAPATAN VEGETASI TERHADAP SEDIMENTASI DANAU BUATAN DAN JARINGAN SUNGAINYA DI KEBUN RAYA UNMUL SAMARINDA Muhammad Syafrudin
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 10, No 1 (2011)
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v10i1.4

Abstract

STUDI TENTANG PENGARUH INTENSITAS HUJAN DAN KERAPATAN VEGETASI TERHADAP SEDIMENTASI DANAU BUATAN DAN JARINGAN SUNGAINYA DI KEBUN RAYA UNMUL SAMARINDA The effects of rainfall intensity and vegetation density on sedimentation of artificial lake and it’s up-stream channel in Kebun Raya  Unmul SamarindaMuhammad SyafrudinLaboratorium Klimatologi Hutan, Jurusan Manajemen Hutan,Fakultas Kehutanan Universitas MulawarmanSamarinda ABSTRACTThis research was conducted in Kebun Raya Unmul Samarinda, an educational forest of Mulawarman University, It aimed to figure out the effect of rainfall intensity and vegetation, as well as estimated the amount of accumulated sediment in the lake and its up-stream channel. Statistically, this study revealed that two parameters (rainfall and vegetation) has contribute to the discharge flow and discharge suspended load sediment  and respectively it represented by its correlation coefficient which are 0.89-0.97 and 0.86-0.94. The values tend to closed to 1 and it indicate a positive correlation between parameters and discharge flow, as well as discharge suspended load sediment. Discharge flow and discharge suspended load sediment also related each other. The increases of discharge flow will lead to the increases of discharge suspended load sediment. Discharge suspended load sediment will increase whenever a lot of sediment from erosion flow to the river body. Discharge suspended load sediment increase in the river number 2, 4 and 5 because landuse changing occurred in the upper of the rivers outside of the forest. Potential sediment volume in a year at the each sampling points are 895.38 ton at River 1,464.23 ton at river 2,889.04 ton at river 3,336.76 ton at river 4,173.68 ton at river 5 and 335.56 ton at the lake.Key words : rainfall intensity, discharge flow, suspended load sediment.
IILEGAL LOGGING YANG MENGAKIBATKAN KERUSAKAN HUTAN DI DESA PUNGKAT, KECAMATAN GAUNG, KABUPATEN INDRAGIRIHILIR (INHIL) RIAU MENURUT UNDANG-UNDANG REPUBLIK INDONESIA NOMOR 18 TAHUN 2013 TENTANG PENCEGAHAN DAN PEMBERANTASAN PERUSAKAN HUTAN Muhammad syafrudin
Dinamika Vol 28, No 4 (2022): Dinamika
Publisher : Fakultas Hukum Universitas Islam Malang

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Abstract

AbstrakPada penelitian ini, penulis mengangkat permasalahan penebangan hutan liar di Desa Pungkat Kec. Gaung Kabupaten Indragirihilir Riau. Berkenaan dengan kehadiran PT SAL, ratusan warga Pangkat protes. Mereka meminta perusahaan menghentikan aktivitasnya dan menyelesaikan masalah dengan warga terlebih dahulu. Namun, tidak ada tanggapan positif dari perusahaan. Selain menyebabkan hilangnya lahan perkebunan mereka, kehadiran perusahaan juga menyebabkan kualitas tanaman kelapa menurun. Metode penelitian yang digunakan adalah penelitian yuridis empiris. Adapun hasil penelitian dan pembahasan ditemukan bahwa PT. SAL secara administratif perizinan masih belum jelas dan kritik penolakan warga Desa Pungkat tidak diharaukan bahkan hasil kesepakatan saat musyawarah pun tidak diindahkan oleh pihak perusahaan. Selain daripada itu, PT. SAL telah melakukan suatu penebangan hutan di luar area perizinannya, sehinnga tindakan perusahaan tersebut dapat dikategorikan sebagai tindakan penebangan hutan secara liar. Dalam penelitian ini ditemukan bahwa kendala-kendala yang menyebabkan permasalahan di Desa Pungkat tidak usai adalah tidak efektifnya koordinasi antar instansi, pengawasan yang lemah dan minimnya anggaran dalam menegakkan para pelaku penebang hutan liar. Langkah-langkah dalam menangani permasalah tersebut dapat berupa tindakan deteksi, tindakan preventif dan tindakan represif.Kata Kunci : Hutan, Kerusakan Hutan, Penebangan Liar AbstractIn this study, the authors raised the problem of illegal logging in the village of Pungkat, district. The echo of Indragirihilir Regency, Riau. Regarding the presence of PT SAL, hundreds of Rank residents protested. They asked the company to stop its activities and resolve the problem with the residents first. However, there was no positive response from the company. In addition to causing the loss of their plantation land, the presence of the company also causes the quality of coconut plantations to decline. The research method used is empirical juridical research. The results of research and discussion found that PT. Administratively, SAL permits are still unclear and criticism of the refusal of Pukat Village residents is not expected, even the results of the agreement during deliberation are not heeded by the company. Apart from that, PT. SAL has carried out a forest clearing outside its permit area, so that the company's actions can be categorized as illegal logging. In this study it was found that the obstacles that caused the problems in Pukat Village to not end were ineffective coordination between agencies, weak supervision and the lack of budget in enforcing illegal loggers. The steps in dealing with these problems can be in the form of detection, preventive and repressive measures.Keywords: Forest, Forest Destruction, Illegal Logging
IKLIM MIKRO DI BAWAH TEGAKAN POHON KOMBINASI ANGSANA (PTEROCARPUS INDICUS) DAN GLODOKAN (POLYALTHIA LONGIFOLIA) DI MEDIAN JALAN MAYOR JENDERAL S. PARMAN DI KOTA SAMARINDA Karyati Karyati; Malissa Yusnicha Yusak; Muhammad Syafrudin
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 22, No 1 (2023): Maret 2023
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/agrifor.v22i1.6331

Abstract

Peranan pohon-pohon yang ditanam di median jalan dapat memperbaiki iklim mikro di suatu kota. Tujuan penelitian ini untuk mengetahui karakteristik beberapa unsur cuaca (intensitas cahaya matahari, suhu udara, dan kelembapan udara), menghitung tingkat kebisingan, dan menghitung indeks kenyamanan pada tiga titik berbeda di bawah tajuk dan luar tajuk pohon kombinasi angsana (Pterocarpus indicus) dan glodokan (Polyalthia longifolia) di median Jalan Mayor Jenderal S. Parman, Kota Samarinda. Pengukuran unsur-unsur cuaca dan tingkat kebisingan dilakukan pada tiga waktu pengukuran (pagi pukul 06.00-07.00 WITA; siang pukul 12.00-13.00 WITA; sore pukul 17.00-18.00 WITA) selama 30 hari menggunakan Environment meter dan Lux meter. Intensitas cahaya matahari dan suhu udara rataan di bawah tajuk relatif lebih rendah dibandingkan dengan di luar tajuk pohon di median jalan. Kelembapan udara rataan pada Titik 1 di bawah tajuk dan di luar median jalan tinggi dikarenakan adanya pohon besar yang memiliki kerapatan tajuk yang relatif tinggi. Tingkat kebisingan rataan di Titik 1 di bawah tajuk sebesar 75,6 dB dan di luar tajuk sebesar 76,6 dB, di Titik 2 di bawah tajuk sebesar 76,0 dB dan di luar tajuk sebesar 76,3 dB, dan di Titik 3 di bawah tajuk sebesar 76,0 dB dan di luar tajuk sebesar 75,9 dB. Temperature Humidity Index (THI) pada ketiga titik pengukuran masih tergolong nyaman. Informasi tentang iklim mikro di bawah tajuk pohon-pohon yang ditanam di median jalan dapat dijadikan bahan pertimbangan dalam pemilihan jenis dan pengelolaan tanaman di median jalan.
Pemodelan Prediksi Kadar Gula Darah Pada Pasien Diabetes Menggunakan Metode Regresi Linear Hanafi, Hanan; Alfian, Ganjar; Widodo, Tri; Syafrudin, Muhammad
Journal of Internet and Software Engineering Vol 5 No 1 (2024): Journal of Internet and Software Engineering
Publisher : Department of Electrical Engineering and Informatics, Vocational College, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jise.v5i1.8480

Abstract

Mengetahui kadar gula darah di masa depan akan dapat membantu penderita diabetes dalam melakukan tindakan preventif lebih awal sehingga dapat mengontrol kadar gula darah dan penyakit diabetesnya. Penelitian ini mengusulkan pemodelan prediksi kadar gula darah pada pasien diabetes menggunakan metode regresi linear. Dataset yang digunakan adalah data time series dari kadar gula darah pada 30 anak penderita diabetes tipe 1. Dataset tersebut digunakan sebagai parameter input tunggal dengan tambahan pemanfaatan data statistik yang diuji menggunakan beberapa algoritma, yaitu Linear Regression, Lasso Regression, Ridge Regression, eXtreme Gradient Boosting (XGB), dan K-Nearest Neighbor (KNN). Pada tahap evaluasi performa model menunjukkan bahwa metode regresi linear lebih baik dari model prediksi lainnya. Hasilnya menunjukkan untuk Prediction Horizon (PH) pada 5 menit, 15 menit, dan 30 menit didapat nilai rata-rata Root Mean Squared Error (RMSE) dari 15 pasien yang diuji sebesar 5,024, 12,488, dan 20,635, nilai Mean Absolute Error (MAE) sebesar 2,891, 8,272, dan 14,926 serta nilai Coefficient of Determination (R2) sebesar 0,962, 0,741, dan 0,39. Hasil model prediksi pada penelitian ini diimplementasi dan divisualisasikan ke sistem informasi berbasis website. Dalam sistem tersebut pengguna dapat memprediksi kadar gula darah di masa depan dengan berdasarkan riwayat kadar gula darah pada waktu 30 menit sebelumnya. Pengguna juga dapat melihat visualisasi data pergerakan kadar gula darah berdasarkan rentang waktu tertentu. Sistem ini diharapkan dapat membantu pasien diabetes untuk memprediksi kadar gula darah di masa depan sehingga dapat mengontrol kadar gula darahnya dan menghindari kondisi kesehatan yang buruk di masa depan.
FLUKTUASI IKLIM MIKRO DI HUTAN PENDIDIKAN FAKULTAS KEHUTANAN UNIVERSITAS MULAWARMAN Karyati, Karyati; Ardianto, Sidiq; Syafrudin, Muhammad
Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Vol 15, No 1 (2016): Maret
Publisher : Universitas 17 Agustus 1945 Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/af.v15i1.1785

Abstract

Fluktuasi Iklim Mikro di Hutan Pendidikan Fakultas Kehutanan Universitas Mulawarman. Tujuan penelitian ini adalah untuk mengetahui fluktuasi beberapa unsur iklim (suhu udara, kelembaban udara, intensitas cahaya, dan curah hujan) di Hutan Pendidikan Fakultas Kehutanan Universitas Mulawarman, Samarinda, Kalimantan Timur. Suhu udara rata-rata di dalam hutan sebesar 25,4°C dan di luar hutan sebesar 27,4°C. Kelembaban relatif rata-rata di dalam hutan lebih besar (91,6%) dibandingkan di luar hutan (83,9%). Intensitas cahaya maksimum sebesar 188.80 µmol tercapai pada pukul 12:00 dan intensitas cahaya minimum pada pukul 05:00, 06:00 dan 20:00 sebesar 0.00 µmol. Selama 30 hari pengamatan, tercatat 11 hari hujan dan curah hujan tertinggi sebesar 3 mm pada tanggal 2 Juni 2015.
An Investigation Towards Resampling Techniques and Classification Algorithms on CM1 NASA PROMISE Dataset for Software Defect Prediction Fatwanto, Agung; Nur Aslam, Muh; Ndugi, Rebbecah; Syafrudin, Muhammad
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 8 No 5 (2024): October 2024
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29207/resti.v8i5.5910

Abstract

Software defect prediction is a practical approach to improving the quality and efficiency of software testing processes. However, establishing robust and trustworthy models for software defect prediction is quite challenging due to the limitation of historical datasets that most developers are capable of collecting. The inherently imbalanced nature of most software defect datasets also posed another problem. Therefore, an insight into how to properly construct software defect prediction models on a small, yet imbalanced, dataset is required. The objective of this study is therefore to provide the required insight by way of investigating and comparing a number of resampling techniques, classification algorithms, and evaluation measurements (metrics) for building software defect prediction models on CM1 NASA PROMISE data as the representation of a small yet unbalanced dataset. This study is comparative descriptive research. It follows a positivist (quantitative) approach. Data were collected through observation towards experiments on four categories of resampling techniques (oversampling, under sampling, ensemble, and combine) combined with three categories of machine learning classification algorithms (traditional, ensemble, and neural network) to predict defective software modules on CM1 NASA PROMISE dataset. Training processes were carried out twice, each of which used the 5-fold cross-validation and the 70% training and 30% testing data splitting (holdout) method. Our result shows that the combined and oversampling techniques provide a positive effect on the performance of the models. In the context of classification models, ensemble-based algorithms, which extend the decision tree classification mechanism such as Random Forest and eXtreme Gradient Boosting, achieved sufficiently good performance for predicting defective software modules. Regarding the evaluation measurements, the combined and rank-based performance metrics yielded modest variance values, which is deemed suitable for evaluating the performance of the models in this context.
KANDUNGAN POLUTAN DAN UNSUR HARA MIKRO PADA DAUN-DAUN POHON DAN TUMBUHAN BAWAH DOMINAN DI TAMAN SEJATI KOTA SAMARINDA Karyati, Karyati; Akbari, Achmad Faturahman; Syafrudin, Muhammad; Karmini, Karmini; Widiati, Kusno Yuli
JURNAL RISET PEMBANGUNAN Vol 7, No 1 (2024)
Publisher : BADAN PENELITIAN DAN PENGEMBANGAN DAERAH PROVINSI KALIMANTAN TIMUR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36087/jrp.v7i1.155

Abstract

Keberadaan taman kota dengan pohon-pohon dan tumbuhan bawah memiliki banyak fungsi penting. Salah satu peran penting pohon adalah dapat mereduksi polutan. Penelitian ini bertujuan  untuk mengetahui jenis pohon dan tumbuhan bawah yang dominan serta kandungan polutan (timbal) dan unsur hara mikro (besi dan mangan) pada daun dan tumbuhan bawah di Taman Sejati Kota Samarinda. Indeks Nilai Penting (INP) digunakan untuk menentukan jenis pohon dan tumbuhan bawah yang dominan. Kandungan polutan dianalisis dengan metode destruksi basah dan menggunakan Atomic Absorption Spectrophotometer (AAS). Lima jenis pohon yang dominan adalah Calophyllum inophyllum, Albizia saman, Acacia mangium, Senna siamea, dan Swietenia macrophylla. Jenis tumbuhan bawah didominasi oleh Alternanthera brasiliana, Justicia gendarusa, Tradescantia spathacea, Ruellia simplex, dan Excoecaria cochinchinensis. Kandungan Pb tertinggi (21,27 mg/kg) terdapat pada daun Acacia mangium, Fe (444,68 mg/kg) terdapat pada daun Senna siamea, dan Mn (223,32 mg/kg) terdapat pada daun Acacia mangium. Daun tumbuhan bawah Justicia gendarusa mengandung Pb sebesar 17,32 mg/kg, Tradescantia spathacea mengandung Fe sebesar 1659,70 mg/kg, dan Ruellia simplex mengandung Mn sebesar 110,37 mg/kg.
Co-Authors Agung Fatwanto, Agung Akbari, Achmad Faturahman Albescu, Mihaela Alfian, Ganjar Ardianto, Sidiq Drajat Tri Kartono fitria ningsih Fitriyani, Norma Latif Hanafi, Hanan Hernandes, Erika Karmini Karmini Karyati Karyati Karyati Karyati Lee, Kek Kin Malissa Yusnicha Yusak Ndugi, Rebbecah Nur Aslam, Muh Qolbiyani, Syifa Latif Risky Ayu Kristanti Rubiyatno Sugiharjo, Sugihardjo Tri Widodo Widiati, Kusno Yuli Yuliara Limbong Yulisa, Arma