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Journal : Kappa Journal

Analisis Perbandingan Nilai Efektivitas Koefisien Absorbsi pada Pelepah Pisang dan Eceng Gondok Feby Zulhiyah; Muhammad Sholeh; Ratna Woro Susanti; Lambang Subagiyo; Atin Nuryadin
Kappa Journal Vol 6 No 2 (2022): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v6i2.5881

Abstract

Kebisingan menjadi suatu masalah yang tengah dihadapai oleh masyarakat terutama masyarakat yang tinggal didaerah perkotaan yang sangat ramai oleh berbagai macam aktivitas. Bahan pernyerap suara atau bahan akustik adalah bahan khusus yang dibuat untuk fungsi menyerap bunyi pada frekuensi tertentu. Material yang bersifat lembut, berpori dan berserat diyakini mampu menyerap energi suara yang mengenainya. Pelepah pisang dan eceng gondok adalah salah satu contoh material alami dengan karakteristik berpori. Percobaan ini menggunakan metode tabung impedansi, dengan pengukuran intensitas bunyi yang divariasikan dari level 1 hingga level 5 pada frekuensi 200 Hz, 400 Hz, 600 Hz, dan 800 Hz. Berdasarkan hasil nilai koefisien absorbsi, pelepah pisang memiliki koefisien absorbsi tertinggi pada frekuensi 800 Hz, sedangkan eceng gondok memilki koefisien absorbsi tertinggi pada frekuensi 600 Hz. Sehingga pelepah pisang lebih efektif daripada eceng gondok, sebagai bahan akustik alami.
Potensi Pembelajaran Berbasis Etnosains dalam Buku Ajar Kurikulum Merdeka IPA SMP Kelas VII Dinurrohmah, Syayidah; Sari, Greny Mispi Anisa; Wisutama, Remanda Arya; Sulaeman, Nurul Fitriyah; Nuryadin, Atin
Kappa Journal Vol 7 No 2 (2023): Agustus
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i2.12254

Abstract

The context of ethnoscience-based learning in the Merdeka curriculum is related to socio-cultural studies. Following up on the uncommon science learning integrated with ethnoscience studies, especially in the socio-cultural realm, a content analysis of textbooks used in schools was conducted. This study aims to determine the potential of junior high school science learning using the Merdeka curriculum integrated into ethnoscience studies in the socio-cultural aspect. The research was conducted using the content analysis method, with the analyzed indicators consisting of 5 parts of values in socio-cultural. The results showed that science learning has great potential to be integrated with ethnoscience studies, considering that the textbooks have been able to present all value indicators in the socio-cultural. All indicators have been contained in the book in each chapter, except for spiritual value incarcerates. The appearance of all indicators in each chapter in the book provides information on the suitability of textbooks with the aim of curriculum. However, spiritual value indicators are still contained in only 2 chapters in the book, so it is necessary to strengthen spiritual values in each chapter in the book. Further research can be done by conducting content analysis with a more diverse number of books, so as to provide a broader picture of textbooks
Bangkitan Tegangan Listrik pada Rekayasa Piezoelektrik Berbasis Bahan Dapur Zahra, Alya Puspita; Alam, Muhammad Ikhsan Bachrul; Wardani, Regina Bilqis; Sholeh, Muhammad; Nuryadin, Atin; Subagiyo, Lambang
Kappa Journal Vol 8 No 1 (2024): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i1.18520

Abstract

Piezoelectric constituents consist of PbZrTiO3 or PZT which contains lead (Pb) hich is industrial waste which is hazardous if it enters the human body. Based on this, the researchers used environmentally friendly kitchen materials in the form of Potassium Bitartrate and Sodium Bicarbonate as a substitute for the original piezoelectric material. Through the experimental method of mixing the two materials, the evaporation and refrigeration methods, amorphous solid forms were obtained. The solid is then coated with aluminum and tested for suitability by measuring the stress of the material before and after being vibrated. The voltage obtained after being vibrated formed an exponential graph with the highest voltage of 0.28 V. Then, the material was tested again for its feasibility in charging the capacitor and the voltage generated by the capacitor was obtained at. 0.0221V. Basic knowledge related to cross-curricular and subject-specific sustainability.
Co-Authors Abdul Hakim Abdul Hakim Abdul Hakim Agus Riyadi Ahmad Zaki Dzulfikar, Ahmad Zaki Alam, Muhammad Ikhsan Bachrul Alika Nazwa Maulida Alphero Tanlianto Anamta, Mega Hajraini Andi Anwar Andina Armelia Anggara Duta Medika Anugrah Putri Nuraini Apriatin, Diana Arif Sugianto Astrid Alifkalaila Ayu Adinda Dhevi Pramesti, Ida Azizah, Athirah Nur Bulkiah, Siti Charlos Falentino Chelda Yuliana Chelda Yuliana Dakhi, Grecellia Mei Magdalena Damayanti, Isniawana Damayanti, Puardmi Dersan, Irviomi Desi Az Zahra Putri Desy Yuliana Dalimunthe Desy Yuliana Dalimunthe, Desy Yuliana Dinurrohmah, Syayidah Efwinda, Shelly Eko Andrianto Erna Sari Erna Sari, Erna Eryawan Presma Yulianrifat Evanita Mutang Evanita Mutang Fadhilah, Khairunnisa Hayatul Falentino, Charlos Febryan, Mohamad Ezra Feby Zulhiyah Feby Zulhiyah Feby Zulhiyah Firda Yunita Kartikasari Fitri, Divani Rahma Fitri, Muhammad Fauzan Grace Novely Aswin Siallagan Greny Mispi Anisa Sari Greny Mispi Anisa Sari Greny Mispi Anisa Sari Greny Mispi Anisa Sari Habibah Habibah Hadi Santoso Herman Aldila Hermitha, Ami Diana Ippei Mineta Iyar Anjas Oktaba Junus, M khusnul khotimah Laela Nisfi Syiami Laili Komariyah Laili Komariyah, Laili Lambang Subagiyo M Junus M. Ari Prayogo Marzan, Joey-Nell T. Medika, Anggara Duta Melliana Jiana Bahi Muhaimin Abdillah Muhammad Fikri Erlangga Muhammad Ikhsan Bachrul Alam Muhammad Saparuddin Muhammad Sholeh MUHAMMAD SHOLEH Muhammad Sholeh Muhtadin, Achmad Muliati Syam Muliati Syam Muliati Syam Muliati, Muliati Mutang, Evanita Nika Eva Widiyanti Nun Nasih, Amin Nur'aini, Anugrah Putri Nurjannah, Indra Nurlaili Nurlaili Nurseptiani, Syifa Nurul Arifa Nurul F. Sulaeman Nurul Fitriyah Sulaeman Nurul Fitriyah Sulaeman Nurul Fitriyah Sulaeman, Nurul Fitriyah Nurul Sulaeman Nurul Wahdah Palapa, Kaleb Gideon Pasaribu, Dian Rachel Pratama, Andhika Aditiya Putri Sri Rahmawati Putri, Sevia Tasya Rahmadani, Agung Rahman Setiyawan Rahmawati, Eka Septia Rahmawati, Putri Sri Ratna Woro Susanti Remanda Arya Wisutama Rika Afriani Rika Afriani Saeki, Hideya Salsabila, Zulfa Sari, Firda Yunita Kartika Sari, Greny Mispi Anisa Shelly Efwinda Subagyio, Lambang Sudarman Sudarman Susilo Susilo Syafi’i, Ahmad Syayidah Dinurrohmah Syayidah Dinurrohmah Syayidah Dinurrohmah Syayidah Dinurrohmah Syayidah Syayidah Dinurrohmah Syifaul Insani Zaen Tan Fahrur Rozy Tandra Tan Fahrur Rozy Tandra Tandra, Tan, Fahrur Rozy Tanlianto, Alphero Tomohiro Takebayashi Ulul Hadiatul Fauki Vika Yulinda Antika Wahyu Tri Nur Aprilia Wandira Ramadani, Ayu Wandira, Ayu Ramadani Wardani, Regina Bilqis Wati, Retno Rahma Widyatmike Gede Mulawarman Wisutama*, Remanda Arya Wisutama, Remanda Arya Yuni Utami Asih, Yuni Utami Zahidsyahtya, Muhammad Amiq Zahra, Alya Puspita Zeni Haryanto Zulkarnaen Zulkarnaen Zulkarnanen