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All Journal BIOMA : Jurnal Biologi Makassar Assimilation: Indonesian Journal of Biology Education Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Jurnal Ilmiah RESPATI Asean Journal of Science and Engineering (AJSE) Indonesian Journal of Multidiciplinary Research (IJoMR) Indonesian Journal of Teaching in Science
Suwandi, Tri
Universitas Pendidikan Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Social Sciences Other

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Electric Plan Rizky, Adhinda Septhia Nur; Al Fathin, Deva Shofa; Nurapriliansyah, Helmi; S., Nadia Difa’i Mutmainah; Suwandi, Tri; Rusdiana, Dadi
Indonesian Journal of Multidiciplinary Research Vol 1, No 1 (2021): IJOMR: VOLUME 1, ISSUE 1, 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.461 KB) | DOI: 10.17509/ijomr.v1i1.33661

Abstract

Energy consumption that still use fossil energy or non-renewable energy has a negative impact on the environment. Alternative energy innovations or renewable energy have also begun to be developed to replace fossil energy or non-renewable energy. This study aims to determine whether other types of plants that wasn’t used by Helder could also generate electricity and reduce the impact of non-renewable energy. This research was conducted by placing electrodes on the soil close to the roots of the plants. In this experiment, we used 3 types of plants that are common at home, namely Chrysanthemum, Orchid, and Red Begonia. The results show that there is indeed a very small flow of electricity, this could possibly due to various factors. If this experiment continues to develop, the possibility of green-electrical energy could be more than just a dream. Based on experiments using a prototype that we have done, the three plants have the potential to produce electric currents in the range of 0.02mA-0.65mA.
Piezoelectric Mat as Door Bell Yuandhana, Genta; Lisdiana, Kania; Ghifari, Rizal Haidar; Shadrina, Syifa Nur; Rusdiana, Dadi; Suwandi, Tri
Indonesian Journal of Multidiciplinary Research Vol 1, No 1 (2021): IJOMR: VOLUME 1, ISSUE 1, 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (838.79 KB) | DOI: 10.17509/ijomr.v1i1.33788

Abstract

Ecological Crisis is a change in world weather which is getting warmer due to the accumulation of CO2 gas in the atmosphere. Burning rock coal which is a source of electricity generation, is a contributor to the effects of the ecological crisis in the world. This caused the world needs new energy sources, such as piezoelectric, etc. The manufacture of piezoelectric mats as house bells aims to show that there is alternative energy for power generation in order to reduce the use of coal in Indonesia. By reducing the use of coal, it will reduce the occurrence of an ecological crisis. The research method we used was an experiment with planning, design and implementation stages. The renewal of this project is to assemble and apply the piezoelectric directly to objects that require electrical energy by replacing the power source from the piezoelectric system, and implementing it for house bells. Piezoelectric mat is a mat that can generate electrical energy if the surface is pressed. This energy can be generated from the piezoelectric that is installed on the inside of the mat. Piezo mats will be installed to be stepped on by guests visiting a house. This foot step will put pressure on the mat. The more tread is obtained, the more electricity is generated. This piezo carpet will be installed in front of the house. The use of piezo mats is an effort to utilize mechanical energy in the form of pressure generated by footrests into electrical energy.
Pengaruh Perbedaan Jenis Medium Perendaman Terhadap Vase Life Bunga Potong Mawar Merah Adila Hafidzani Nur Fitria; Dinda Widyani; Elis Kurniani; Jihan Nurhalimah Salsabila; Kelvin Pramudya Anantatur; Meli Driyani; Nabila Tazkiyyatul Afifah; Narti Nurhatifah; Neng Iis Nur Istiqomah; Rudhya Nurul Ilma; Suti Supadmi; Syafira Aulia Putri; Syifa Marwah; Taufik Rahman; Tri Suwandi
JURNAL PERTANIAN Vol 12, No 1 (2021): Jurnal Ilmiah Respati
Publisher : Universitas Respati Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52643/jir.v12i1.1350

Abstract

Bunga mawar (Rosa hybrida) merupakan salah satu jenis bunga potong yang memiliki nilai ekonomi tinggi dan sangat prospektif untuk dikembangkan secara komersial. Namun, kesegaran dari bunga mawar merah potong tidak mampu bertahan lama akibat kandungan air yang tinggi pada mawar. Salah satu upaya untuk mempertahankan kualitas dan memperpanjang masa kesegaran bunga adalah dengan pemberian larutan perendam. Umumnya larutan perendam terdiri dari air, gula (sukrosa), bakterisida, dan antibiotik. Penelitian ini bertujuan untuk mengetahui pengaruh jenis medium terhadap vase life bunga potong mawar merah dan jenis medium yang paling efektif untuk memperpanjang vase life bunga potong mawar merah. Penelitian dilaksanakan dengan 6 perlakuan dan 3 kali ulangan. Perlakuan yang diuji, yaitu A (air mineral), AG (Air dan larutan gula 1%), GK1 (larutan gula 1% dan ekstrak kemangi 12,5%), GK2 (larutan gula 1% dan ekstrak kemangi 25%), GB1 (larutan gula 1% dan ekstrak belimbing wuluh 12,5%), GB2 (larutan gula 1% dan ekstrak belimbing wuluh 25%). Dan dalam setiap perlakuan berisi tiga bunga mawar potong. Data diolah secara statistik dengan teknik pengolahan data menggunakan Uji ANOVA dan uji Duncan. Hasil penelitian menunjukkan bahwa perlakuan A, AG dan GB1 menunjukan tingkat kesegaran bunga yang paling tinggi, sedangkan pada perlakuan GK2 menunjukan tingkat kesegaran bunga yang paling rendah.
Steam Power Plant Powered by Wood Sawdust Waste: A Prototype of Energy Crisis Solution Fachri Hidayah; Fitriyyatul Muslihah; Indri Nuraida; Ratu Winda; V. Vania; Dadi Rusdiana; Tri Suwandi; Muhammad Aziz
Indonesian Journal of Teaching in Science Vol 1, No 1 (2021): IJOTIS: March 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1607.431 KB) | DOI: 10.17509/ijotis.v1i1.33777

Abstract

The used of electricity from year to year is increasing. One of the alternative to power plants with abundant availability is wood waste. The aims of this study is to: (1) design a wood waste PLTU prototype as an alternative biomass-based energy resource and an effort to reduce wood waste, (2) describe the calorific value, the resulting electrical voltage, and the duration of the lamp flame generated from wood waste fuel. Teak (Tectona grandis), surian wood waste (Toona sureni), and a mixture of both. This descriptive research includes 3 stages, which is analysis, design, and testing. Through this research, a prototype of a wood waste steam power plant was successfully designed by utilizing biomass waste fuel. The results showed that the calorific value, the resulting electrical voltage, and the resistance time of the lamp varied in the wood samples used. This indicates that the wood samples used have the potential to be used as an alternative to biomass-based energy resources.
PENGARUH KONSENTRASI HCl DAN PERLAKUAN MEKANIK TERHADAP VIGOR DAN VIABILITAS BIJI PERIA (Momordica charantia) Ardhiana Resti Kamila; Hilma Aulia; Mutiara Zahira Ramadhani; Puput Yuliasari; Taufik Rahman; Tri Suwandi
BIOMA : JURNAL BIOLOGI MAKASSAR Vol. 7 No. 2 (2022): Bioma : Juli - Desember 2022
Publisher : Department of Biology, Faculty of Mathematics and Natural Sciences, Hasanuddin University

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

Abstract

Skarifikasi berfungsi untuk mengurangi hambatan mekanik biji sehingga mempermudah biji dalam melakukan imbibisi yang dapat mempercepat pematahan dormansi yang diharapkan dapat meningkatkan daya hidup atau berkecambah dan daya kecepatan pertumbuhan biji peria. Penelitian ini bertujuan untuk mengetahui pengaruh skarifikasi mekanik melalui pengamplasan dan skarifikasi kimiawi melalui perendaman larutan HCl dengan konsentrasi yang berbeda terhadap vigor dan viabilitas pada biji peria (Momordica charantia). Penelitian terdiri atas beberapa tahap, yaitu persiapan biji peria yaitu dengan dilakukan perlakuan seperti pengamplasan dan pengimbibisian dengan HCl. Kemudian dilakukan pembibitan, yaitu penanaman biji peria menggunakan media tanam sebanyak 3 kali ulangan. Pertumbuhan biji diamati tiap harinya dan dicatat panjang radikula yang muncul. Data pengamatan kemudian diolah menggunakan Uji Anova melalui aplikasi SPSS. Didapatkan bahwa skarifikasi mekanik (pengamplasan) dan skarifikasi kimiawi (pengimbibisian menggunakan HCl) memberikan pengaruh yang tidak signifikan terhadap viabilitas dan vigor biji peria. Skarifikasi mekanik dan kimiawi berpengaruh positif terhadap viabilitas dan vigor biji, sedangkan penggabungan perlakuan antara skarifikasi mekanik dan kimiawi berdampak negatif bagi viabilitas dan vigor biji.
Profil pengalaman belajar siswa dalam menjelaskan fenomena ilmiah pada IPA/biologi selama penerapan pembelajaran daring di masa pandemi Dewi Wansantika Gunawan; Tri Suwandi; Ana Ratna Wulan
Assimilation: Indonesian Journal of Biology Education Vol 4, No 2 (2021): September 2021
Publisher : Department of Biology Education, Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/aijbe.v4i2.41483

Abstract

This study aims to describe student's learning experiences in explaining scientific phenomena in online science/biology learning. This study uses a descriptive method, the data sources are questionnaires and Student Worksheets (LKS) from six schools in the city of Bandung which were selected by stratified random sampling with good, sufficient and poor categories based on the 2019 BSNP. There are 207 state junior high school students in Bandung City who filled out a 40-item questionnaire to answer this research. Questionnaire items for students have been adjusted to the skills to explain scientific phenomena based on the PISA 2018 framework. The results show that the student's learning experience in explaining scientific phenomena of Science/Biology when online learning has not been implemented optimally. The results show that the skill to explain scientific phenomena gets score 1,01. There are results of the worksheet’s analysis which show that the orders or questions on the worksheet that have been made by the teacher are 50% according to those obtained from schools in the good category. Through this research, the problem is that when doing practicum, the material is not understood because of the discrepancy of the material during the learning process.
Environmental learning student’s worksheet of air pollution (eswopol): inovasi lembar kerja siswa berbasis hots-aep Ilmi Zajuli Ichsan; Diana Vivanti Sigit; Henita Rahmayanti; Agung Purwanto; Nur Fadli Hazhar Fachrial; Tri Suwandi; Ahmad Ali; Titin Titin; Farah Muthi Hermawati
Edubiotik : Jurnal Pendidikan, Biologi dan Terapan Vol 5 No 01 (2020): Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Publisher : Program Studi Pendidikan Biologi, Fakultas Pendidikan Ilmu Eksakta dan Keolahragaan, IKIP Budi Utomo Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (540.4 KB) | DOI: 10.33503/ebio.v5i01.649

Abstract

Environmental problems need to be solved by students' HOTS abilities. This research aimed to develop environmental learning student's worksheet of air pollution (eswopol) based on Higher Order Thinking Skills Assessment based on Environmental Problems (HOTS-AEP). The research method used research and development that modified from Borg and Gall model. The study was conducted in December 2019 until January 2020. The research instrument used the interview transcript and validation questionnaire. The research data obtained in the form of an average score of validation results. The data analysis technique used is descriptive. The results showed that the environmental learning student's worksheet of air pollution (eswopol) based on HOTS-AEP was declared valid with an average validation score of 3.55 (very valid category). The conclusion of this research is eswopol based on HOTS-AEP is appropriate for use in a learning environment.
Design of Rice Husks Gasification Stove Aulia Eka Wulandari; Sekar Madu Kusumawardani; Mutiara Amelia Sabrina; Sofi Arofah; Siti Nur Shifa Sholihat; Dadi Rusdiana; Tri Suwandi; Muhammad Aziz
ASEAN Journal of Science and Engineering Vol 1, No 1 (2021): AJSE: March 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1383.24 KB) | DOI: 10.17509/ajse.v1i1.33644

Abstract

The human population increases every year, reported from the official website of the United Nation, in 2011 the world population reached 7 billion people. Then in 2016 reached 7.4 billion people and the world population in   2020 reached 7.7 billion people. It is estimated that by 2030 it will grow to 8.5 billion people and by 2050 to reach 9.7 billion inhabitants. which makes energy needs also increase. With these facts, we design gasification stove biomass energy that aims to reduce the use of non-renewable fuels.  The study aims to design a rice husks gasification stove to minimize agricultural waste. In this study, there is an innovation in tar reduction using dolomite as a catalyst. This research uses qualitative research methods that are presented descriptively. The gasification stove design is inspired by the oil stove with the addition of an iron pipe that serves as an oxygen supplier. The design of gasification stoves using rice husk as fuel was successfully carried out. This stove is proven to be one of the tools to maximize the potential of using rice husks as fuel. Finally, we hope that this research can continue to be refined in further studies to maximize the utilization of rice husk waste as renewable alternative energy.
Co-Authors Adila Hafidzani Nur Fitria Agung Purwanto Ahmad Ali Al Fathin, Deva Shofa Ana Ratna Wulan Ardhiana Resti Kamila Aulia Eka Wulandari Dewi Wansantika Gunawan Diana Vivanti Sigit Dinda Widyani Elis Kurniani Fachri Hidayah Farah Muthi Hermawati Fitriyyatul Muslihah Ghifari, Rizal Haidar Habiby, Iqbal Henita Rahmayanti HERNANI - Hilma Aulia Ilmi Zajuli Ichsan Indri Nuraida Jihan Nurhalimah Salsabila Kelvin Pramudya Anantatur Lisdiana, Kania Meli Driyani Muhammad Aziz Mutiara Amelia Sabrina Mutiara Zahira Ramadhani Nabila Tazkiyyatul Afifah Narti Nurhatifah Neng Iis Nur Istiqomah Nur Fadli Hazhar Fachrial Nurapriliansyah, Helmi Puput Yuliasari Ratu Winda Rizky, Adhinda Septhia Nur Rudhya Nurul Ilma S., Nadia Difa’i Mutmainah Sekar Madu Kusumawardani Shadrina, Syifa Nur Siti Nur Shifa Sholihat Sofi Arofah Suti Supadmi Syafira Aulia Putri Syifa Marwah Taufik Rahman Taufik Rahman Titin . V. Vania Yuandhana, Genta