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Feri Yulianto
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PENGARUH PASIR - GARAM, AIR KENCING SAPI, BATU KAPUR HALUS DAN KOTORAN AYAM TERNAK TERHADAP NILAI TAHANAN PEMBUMIAN PADA SAAT KONDISI TANAH BASAH Santoso, Sugeng; Yulianto, Feri
MAGISTRA Vol 23, No 76 (2011): Magistra Edisi Juni
Publisher : MAGISTRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (13.153 KB)

Abstract

Sistem pembumian bertujuan untuk mengamankan peralatan-peralatan listrik maupun manusia yangberlokasi di sekitar gangguang dengan cara mengalirkan arus gangguan ke tanah, salah satu faktor untukmendapatkan nilai tahanan pembumian yang kecil yaitu letak elektroda yang akan ditanam. Untuk mengetahuinilai tahanan pembumian diperlukan pengukuran.Salah satu unsur yang perlu diperhatikan dalam pengukuran suatu sistem pembumian adalah kondisitanah,  di  daerah  di  mana  sistem  pembumian  tersebut  akan  dipasang.  Artikel  ini  memaparkan  bagaimanapengaruh penelitian ini terhadap nilai tahanan pembumian. Pengukuran dilakukan dengan memberikan bahan-bahan urukan dan pengaruh sudut pengukurannya.Dari  hasil  analisis  diperoleh  kesimpulan  bahwa  nilai  tahanan  pembumian  sangat  dipengaruhi  olehkondisi tanah di mana elektroda tersebut ditanam, perlakuan-perlakuan terhadap tanah dan sudut pengukuran.Penambahan air kencing sapi memberikan dampak terbaik dalam menurunkan tahanan pentanahan sampaipada nilai 25,84 W.Kata kunci : Tanah, tahanan pembumian, bahan urukan.
INSTRUMEN AWAL IPA SD BERBASIS STEM PADA MATERI EKOSISTEM SISWA FASE C Yulianto, Feri; Patonah, Siti; Sukamto, Sukamto
Jurnal Pendidikan Dasar Vol. 13 No. 2 (2022): Jurnal Pendidikan Dasar
Publisher : Pendidikan Dasar - Pascasarjana Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpd.v13i2.34719

Abstract

The availability of initial instruments in the independent curriculum in elementary schools is still rare. The purpose of this study is to develop Stem -based elementary science questions in student ecosystem phase C, in terms of finding out the characteristics and quality of STEM -based elementary science questions. This research is a research and development with the ADDIE model. The object of this research is class V and VI students with a total of 136 students with 63 male students and 73 female students, through a comfortable sampling. Instrument validation uses the analysis of the Index Aiken and Rasch models. Data collection methods through observation and questionnaires. Data analysis is carried out with expert validation and empirical validation. The results of expert validation the item developed meets valid criteria with a range of 0.78 s.d. 0.82 which shows high levels. The results of the Rasch model analysis show that all items developed have high reliability with Alpha Cronbach 0.70 (high). The problem developed also meets the conformity criteria with the rasch model that is seen in the results of MNSQ clothing in the analysis of orders that are not in accordance with the range of +0.67 s.d. +1,26. The results of the reliability item 0.69 while the people who are reliby are 0.27. Overall it proves that the stem -based elementary science instrument on the student ecosystem of phase C is developing quality.
IMPLEMENTATION OF AN INTEGRATED PBL MODEL IN SOCIAL EMOTIONAL LEARNING IN INDONESIAN LANGUAGE LEARNING IN CLASS IV PRIMARY SCHOOL Yulianto, Feri; Mushafanah, Qoriati
Jurnal Pendidikan Dasar Vol. 15 No. 1 (2024): Jurnal Pendidikan Dasar
Publisher : Pendidikan Dasar - Pascasarjana Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpd.v15i1.43795

Abstract

This research discusses the implementation of the Problem Based Learning (PBL) learning model which is integrated with Social Emotional Learning (SEL) in Indonesian language learning in class IV elementary school. Aims to introduce students to learning that is oriented to daily life problems in the surrounding environment. Apart from that, to develop students' social emotional skills, related to empathetic attitudes through learning Indonesian with persuasive sentence material in class IV elementary school. The method used in this research is descriptive qualitative. This research was conducted in class IV at SDN Sambirejo 02 Semarang. The research results show that the implementation of the SEL integrated PBL model in Indonesian language learning in grade IV elementary school brings positive results. The use of this PBL model focuses on real problems faced by students, in this case related to bullying behavior. Apart from that, through this learning, students can develop learning attitudes such as empathy, discipline, responsibility and honesty. The results of the analysis show that students' learning attitudes have a correlation with students' cognitive achievement scores in the range of 0.55 - 0.78 (fairly strong - strong) and a classical completeness level of 82.75% in learning Indonesian with persuasive sentence material in class. IV.
Co-Authors Qoriati Mushafanah Siti Patonah Sugeng Santoso Sukamto Sukamto