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All Journal Jurnal Teknik Mesin Jurnal Sosial dan Teknologi GEOGRAPHIA: Jurnal Pendidikan dan Penelitian Geografi Jurnal Medika Farmaka
Erlangga, Dimas
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Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Other

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PENGARUH FRAKSI VOLUME SERAT KULIT BATANG KERSEN DENGAN SERAT KARBON TERHADAP KEKUATAN TARIK KOMPOSIT HYBRID DENGAN MATRIK POLIESTER Erlangga, Dimas; ARIF IRFAI, MOCHAMAD
Jurnal Teknik Mesin Vol 7, No 1 (2019)
Publisher : Jurnal Teknik Mesin

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

Abstract

Penggunaan komposit pada masa ini mengalami peningkatan dikarenakan kebutuhan akan bahan material yang memiliki kekuatan serta harga yang ekonomis, selain itu material jenis komposit memiliki sifat ramah lingkungan, tahan terhadap korosi sehingga lebih diunggulkan dibandingkan material jenis logam.. Tujuan dari penelitian yang dilakukan adalah untuk mengetahui kekuatan tarik, dan mekanisme kegagalan komposit dengan matrik poliester. Penelitian ini akan diaplikasikan pada panel panjat tebing sebagai material yang ramah lingkungan dan mendukung serat alam sebagai bahan komposit. Pengujian tarik menggunakan standar ASTM D638. Hasil pengujian tarik kekuatan rata-rata pada variasi fraksi volume 0% serat kulit batang kersen 5% serat karbon, dengan 95% matrik adalah 61,1 MPa, 5% serat kulit batang kersen 5% serat karbon, dengan 90% matrik adalah 62,6 MPa, 10% serat kulit batang kersen 5% serat karbon, dan 85% matrik adalah 63,7 MPa, 15% serat kulit batang kersen 5% serat karbon, dengan 80% matrik adalah 67 MPa, dan 20% serat kulit batang kersen 5% serat karbon, dan 75% matrik adalah 69,2MPa. Kata Kunci: komposit, serat kulit batang kersen, serat karbon, poliester, fraksi volume, dan uji tarik.
Strategi Inovatif Mengembangkan Berpikir Kritis: Proyek Site Plan Berbasis Google My Maps Erlangga, Dimas; Ningrum, Epon; Nandi, Nandi
GEOGRAPHIA : Jurnal Pendidikan dan Penelitian Geografi Vol. 5 No. 2 (2024): Desember
Publisher : Jurusan Pendidikan Geografi Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/gjppg.v5i2.10120

Abstract

21st-century learning requires students to have critical thinking skills essential in the era of globalization. The purpose of the study is to examine the influence of the use of the Google My Maps-based Site Plan project on students' critical thinking skills at SMA Negeri 1 Jatiwangi. Quasi-experimental research method with a non-equivalent control group design, this study involved class XII IPS-3 as an experiment and XII IPS-2 as a control. Data analysis was carried out through statistical tests such as normality, homogeneity, Wilcoxon, N-Gain, Mann-Whitney, and simple linear regression tests. The results showed that the experimental class experienced an increase in critical thinking skills with an N-Gain of 0.44 (medium category), compared to the control class which only achieved an N-Gain of 0.26 (low category). Significant differences were found between the two classes, with a Google My Maps-based project contributing 62% to the improvement of critical thinking skills. It is recommended that the process of creating a project is accompanied by intensive monitoring.
Strategi Inovatif Mengembangkan Berpikir Kritis: Proyek Site Plan Berbasis Google My Maps Erlangga, Dimas; Ningrum, Epon; Nandi, Nandi
GEOGRAPHIA : Jurnal Pendidikan dan Penelitian Geografi Vol. 5 No. 2 (2024): Desember
Publisher : Jurusan Pendidikan Geografi Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/gjppg.v5i2.10120

Abstract

21st-century learning requires students to have critical thinking skills essential in the era of globalization. The purpose of the study is to examine the influence of the use of the Google My Maps-based Site Plan project on students' critical thinking skills at SMA Negeri 1 Jatiwangi. Quasi-experimental research method with a non-equivalent control group design, this study involved class XII IPS-3 as an experiment and XII IPS-2 as a control. Data analysis was carried out through statistical tests such as normality, homogeneity, Wilcoxon, N-Gain, Mann-Whitney, and simple linear regression tests. The results showed that the experimental class experienced an increase in critical thinking skills with an N-Gain of 0.44 (medium category), compared to the control class which only achieved an N-Gain of 0.26 (low category). Significant differences were found between the two classes, with a Google My Maps-based project contributing 62% to the improvement of critical thinking skills. It is recommended that the process of creating a project is accompanied by intensive monitoring.
Pengaruh Budaya Organisasi Dan Komitmen Organisasi Terhadap Kinerja Pegawai Di PT. Garuda Indonesia Tbk Putri, Amelia; Nazua, Nabila; Erlangga, Dimas; Anugrah, Anggun
Jurnal Sosial Teknologi Vol. 4 No. 2 (2024): Jurnal Sosial dan Teknologi
Publisher : CV. Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsostech.v4i2.1144

Abstract

Tujuan penelitian ini adalah untuk menganalisis pengaruh dari budaya organisasi dan komitmeJn organisasi terhadap kinerja pegawai di PT. Garuda Indonesia Tbk. Data yang digunakan dalam penelitian ini adalah data primer dengan metode pengumpulan data yaitu melalui penyebaran kuisioner. Sampel dalam penelitian ini sebanyak 60 orang pegawai di PT. Garuda Indonesia Tbk. Teknik analisis dalam penelitian ini melalui Analisis Regresi Linier Berganda. Hasil analisis membuktikan budaya organisasi dan komitmen organisasi secara simultan berpengaruh signifikan terhadap kinerja pegawai di PT. Garuda Indonesia Tbk. Budaya Organisasi dan komitmen organisasi secara parsial berpengaruh positif dan signifikan terhadap kinerja pegawai di PT. Garuda Indonesia Tbk. Perusahaan angkutan udara sebagai operator bertugas untuk memberikan pelayanan yang optimal kepada masyarakat sebagai pengguna jasa angkutan udara. Tujuan studi ini adalah untuk mengetahui dan menganalisis tingkat kepuasan (persepsi) dan kepentingan pengguna jasa angkutan udara terhadap pelayanan perusahaan angkutan udara yang melayani rute Mamuju–Jakarta di Bandar Udara Tampa Padang–Mamuju
Uji Reduksi Methylene Blue Terhadap Kontaminasi Bakteri Escherichia coli Pada Susu Sapi Segar di Kelompok Peternak Sapi Perah Desa Cisantana Kabupaten Kuningan: Uji Reduksi Methylene Blue Terhadap Kontaminasi Bakteri Escherichia coli Pada Susu Sapi Segar di Kelompok Peternak Sapi Perah Desa Cisantana Kabupaten Kuningan Erlangga, Dimas; Nurhayatina, Rina
Jurnal Medika Farmaka Vol 3 No 3 (2025): Vol 3 No 3 (2025): Jurnal Medika Farmaka
Publisher : LP4M STIKes Karsa Husada Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33482/jmedfarm.v3i3.80

Abstract

The majority of people in Cisantana Village work as livestock farmers, and most of them really enjoy consuming fresh cow's milk. However, most of them are unaware that fresh cow's milk is a food ingredient that contains many bacteria that can cause disease. The purpose of this study was to determine whether there is Escherichia coli contamination in fresh cow's milk from a group of dairy farmers in Cisantana Village and what factors cause this contamination. The method used was colorimetric analysis with the methylene blue reduction test technique. In addition, organoleptic tests, pH, specific gravity, alcohol, and gram staining were also carried out. The samples in this study were fresh cow's milk from 34 farmers. The results showed that of the 34 fresh cow's milk samples, 13 samples tested positive for Escherichia coli contamination. This Escherichia coli contamination was caused by poor barn conditions, equipment, and sanitation.
Co-Authors Anugrah, Anggun Ayu, Media Epon Ningrum Jelita Asian MOCHAMAD ARIF IRFAI Nandi Nandi, Nandi Nazua, Nabila Nurhayatina, Rina Putri, Amelia