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All Journal Thinking Skills and Creativity Journal Matrik : Jurnal Manajemen dan Teknik Industri Produksi
Mu'alim, Mu'alim
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Education Engineering Industrial & Manufacturing Engineering

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Perancangan Eksperimen Reaktor Biogas Portabel dengan Bahan Kotoran Sapi dan Limbah Rumah Tangga Mu'alim, Mu'alim; akhmad, Sabarudin; Arendra, Anis; Purwoko, Sugeng
Matrik : Jurnal Manajemen dan Teknik Industri Produksi Vol 24 No 2 (2024)
Publisher : Prodi Teknik Industri Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30587/matrik.v24i2.5994

Abstract

Universitas Trunojoyo Madura dengan RIP periode 2020-2024 berkonsentrasi salah satunya biogas rumah tangga dengan mitra Kec.Waru, Kab.Pamekasan, Madura karena mempunyai potensi besar pengembangan biogas berbasis kotoran sapi dan limbah rumah tangga. Hal itu melatar belakangi penelitian untuk mengetahui faktor yang berpengaruh terhadap produksi biogas dengan pendekatan perancangan eksperimen faktorial acak lengkap 32 dengan 2 faktor variasi campuran kotoran sapi - limbah rumah tangga dan derajat keasaman (pH) menggunakan 3 perulangan. Penelitian diawali dengan penggalian potensi biogas di Kec, Waru yang dilanjutkan dengan pengembangan reaktor biogas portabel sebagai sarana perancangan eksperimen yang akan dilakukan. Perancangan eksperimen dengan variabel independen (variasi perbandingan campuran kotoran sapi : limbah rumah tangga dengan 3 level yaitu 4:2,3:2,2:3 dan derajat keasaman (pH) dengan 3 level yaitu 6.8,7.0,7.2) dan variabel dependent (tekanan biogas yang dihasilkan) serta variable kontrol (volume reaktor biogas sama, waktu proses (Hydraulic Retention Time atau HRT) 15 hari,perbandingan air: kotoran sapi+ limbah rumah tangga adalah 1:1). Dari 27 data pengamatan dilakukan Uji Anova dan hasilnya hanya faktor variasi campuran kotoran sapi-limbah rumah tangga yang memilik pengaruh signifikan terhadap tekanan biogas yang dihasilkan dengan kombinasi terbaik variasi campuran 4:2 dan derajat keasaman (pH) 7,0 menghasilkan total rata- rata tekanan biogas 0,627333 Psi. Berdasarkan Uji Koefisien Determinasi faktor variasi campuran, derajat keasaman dan interaksi kedua faktor menjelaskan variabel respon tekanan biogas sebesar 46,24 % .
Mathematics Practicum-Based Learning to Improve Critical Thinking Skills for Fourth Grade Students at Madrasah Ibtidaiyah Anugrah, Muhamad; Mu'alim, Mu'alim
Thinking Skills and Creativity Journal Vol. 5 No. 1 (2022): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/tscj.v5i1.35968

Abstract

The reality of education today is still limited to the transfer of knowledge, not to the transfer of value, which creates the concept of critical education, that education is a process in which a nation prepares its young generation to live and fulfill life goals effectively and efficiently. This study aims to analyze the effect of the Mathematics practicum-based learning method on critical thinking skills at Madrasah Ibtidaiyah. This type of research is causality research. The causality method is a study to determine whether there is a consequence of something that is imposed on the subject under investigation. The subjects in this study were fourth-grade students, totaling 32 students—data collection techniques using questionnaires and tests. Data analysis used Simple Regression analysis with the help of SPSS version 25. The results showed that the student responded positively to applying the Mathematics practicum-based learning method. It can be seen from 32 students who gave a positive response. The test results of students' critical thinking skills after showing students get a very good scores. It indicates that students' thinking ability is categorized as very high. The model's goodness shows the coefficient of determination (R-Square) of 0.437% or 43.7% of critical thinking variables explained by the variable using mathematics-based learning methods. Another variable explains the remaining 55.3%. It shows that applying practical learning methods is suitable in fourth-grade Madrasah Ibtidaiyah.
Co-Authors Anis Arendra Anugrah, Muhamad Sabarudin Akhmad Sugeng Purwoko