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All Journal Jurnal Sains Materi Indonesia WAPFI (Wahana Pendidikan Fisika) Jurnal Inovasi Teknologi Pendidikan JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Pendidikan Fisika Journal of Natural Sciences and Mathematics Research Phenomenon : Jurnal Pendidikan MIPA Scientiae Educatia: Jurnal Pendidikan Sains Jurnal Inovasi dan Pembelajaran Fisika Jurnal Penelitian Pembelajaran Fisika JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) JIPF (Jurnal Ilmu Pendidikan Fisika) Jurnal Pendidikan Fisika INDONESIAN JOURNAL OF APPLIED PHYSICS Physics Education Research Journal Physics Communication PSEJ (Pancasakti Science Education Journal) PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Education: Jurnal Sosial Humaniora dan Pendidikan Prosiding Seminar Nasional Pascasarjana Proceeding of International Conference on Science, Education, and Technology

S Sulhadi

Department Of Physics Education, Postgraduate, Universitas Negeri Semarang

Author-ID : 2527365

Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

Published : 36 Documents Claim Missing Document

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The Development of Thermodynamics Law Experiment Media Based on IoT: Laboratory Activities Through Science Problem Solving for Gifted Young Scientists Yeni Rima Liana; S Linuwih; S Sulhadi
Jurnal Penelitian & Pengembangan Pendidikan Fisika Vol 6 No 1 (2020): JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika), Volume 6 Issue 1, J
Publisher : Program Studi Pendidikan Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

In this research, thermodynamics law experiment media based on IoT (Internet of Things) was developed and tested. The purpose was to assess the effectiveness of the IoT-based thermodynamic law experiment media through a problem-based learning approach and laboratory activities using science problem solving for talented young scientists. This research was conducted at SMA 2 Batang. This study using the ADDIE approach model. The development steps are: (1) analyzing curriculum requirements and demands in 2013, (2) designing and manufacturing, (3) developing media, (4) limited through small-scale tests, expert testing, tested on professional physics teachers and student grade XI sciences, (5) evaluated to get feedback in the form of comments and suggestions. This media is equipped with an LCD display to read of temperature, electric current, and electrical voltage in real-time, which is integrated with the Thingspeak application on every student’s android phone. This media is easily assembled, based on digital, equipped with manuals and student worksheets. The validation results from the media experts 90.20% (Very Good), the results of the validation from the material experts 91.50% (Very Good), and the results of the physics teacher’s responses covering all aspects of the material and multimedia 93.00% (Very Good). The results of the validation show that thermodynamics law experiment media based on IoT is appropriate to be used as a media for learning activities in the thermodynamics law material laboratory.

Mechanical Wave Concept Inventory: Developing The Diagnostic Test Four-Tier For Evaluation Febrianto Putra; Budi Naini Mindyarto; Sulhadi Sulhadi
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 7, No 1 (2022): January 2022
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jipf.v7i1.2046

Challenging for teachers in producing learning evaluation instruments that can diagnose students' abilities as well as student misconceptions was important. The diagnostic test four-tiers is one of the best assessment to diagnose students' misconceptions about physics concepts so that Mechanical Wave Concept Inventory has been developed in which form four-tiers diagnostic test. The instrument of the research are student sheet responses, and expert judgment reviews. Research and development frameworks' was included five processes that curriculum analysis processes, creating the design of the product, developing processes, implementing processes, and evaluating processes. The Pearson correlation sig. (2-tailed )resulted in which average r-count coefficient of 0.447 whose test instrument was concluded as valid. Alpha Cronbach's coefficient which was value of 0.90>0.70, so that the instrument was categorized as soon as possible reliable. Expert judgment index in which an average value of 0.87, that is categorized as very good. The quality of the questions was distributed with a classification of 24 good questions, 12 enough questions, and 4 bad questions. The difficulty level of the questions is divided into 7 questions in which easy categories as well as 33 questions in the medium category. Mechanical wave concept inventory was declared valid and reliable as well as good quality.

Analisis Variasi Warna Terhadap Kualitas Daya Serap dan Kuat Tarik Tissue Napkin Paper Ragil Meita Alfathy; Mahardika Prasetya Aji; Sulhadi Sulhadi
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 2, No 1 (2017): March 2017
Publisher : STKIP Singkawang

Tisu telah menjadi kebutuhan sehari–hari masyarakat dunia karena tisu merupakan benda pembersih praktis yang dapat dibawa kemana–mana. Inovasi yang dilakukan oleh para produsen adalah dengan memberikan corak motif bahkan warna untuk menambah nilai estetika dari tisu terutama pada tissue napkin paper atau kertas tisu serbet. Seiring berjalannya waktu, nilai estetika pada tissue napkin paper menjadi pertimbangan utama konsumen dalam pemilihan tisu dibandingkan fungsi utama kertas tissue napkin paper sebagai alat pembersih sehingga konsumen melupakan kualitas fisik dari tissue napkin paper. Tujuan penelitian ini untuk mengidentifikasi potensi perbedaan kuat tarik dan daya serap tissue napkin paper dengan dan tanpa colourant. Tissue napkin paper dihitung volume air yang terserap secara radial dan gaya yang dibutuhkan tisu dengan luas permukaan 0,042m2 untuk merobeknya, sehingga diketahui bahwa tissue napkin berwana merah, hijau, kuning dan putih memiliki persentase kualitas daya serap secara berturut-turut 38,89%, 42,78%, 41,67%, 46,67% dan daya kuat tarik 78,3N/m2; 103,3N/m2; 140,4N/m2; 141,5N/m2. Colourant mengubah struktur pore menjadi lebih sempit dan jarak permukaan serat selulosa menjadi semakin panjang. Sehingga terjadi penurunan daya serap dan kuat tarik tissue napkins paper dengan colourant meskipun tidak dalam taraf yang signifikan.

Pembuatan Semak (Semprotan Anti Keruh) Sebagai Alternatif Lapisan Pencegah Kekeruhan Pada Kacamata Frilisa Dliyaul Haya; Sulhadi Sulhadi; Mahardika Prasetya Aji
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 2, No 1 (2017): March 2017
Publisher : STKIP Singkawang

Pengguna kacamata sering mengalami gangguan pandangan saat terjadi perbedaan suhu udara di kedua sisi kacamata. Perbedaaan suhu tersebut membuat uap air yang berada disekitarnya mengalami kondensasi menjadi titik-titik air kecil yang tersebar di permukaan kaca sehingga menyebabkan berkurangnya transmisi cahaya (keruh). Untuk menghasilkan lapisan pencegah kekeruhan pada kaca, dibuat suatu larutan Semak (semprotan anti keruh) yang bersifat hidrofilik sehingga memungkinkan uap air menyebar merata ke seluruh permukaan daripada pembentukan titik-titik air kecil. Larutan Semak dibuat dari campuran isopropanol, surfaktan non-ionik jenis NP-10 dan anionik jenis Emal 270E dengan berbagai variasi komposisi. Untuk menentukan komposisi terbaik, dilakukan uji sifat anti keruh dan pengukuran sudut kontak. Data hasil uji sifat anti keruh dianalis secara kualitatif berdasarkan keruh atau tidaknya permukaan kaca, sedangkan data hasil pengukuran sudut kontak dibandingkan dengan teori sudut kontak untuk permukaan hidrofilik. Larutan Semak terbaik didapatkan dengan komposisi campuran surfaktan 3,85%, isopropanol 19,23%, dan aquades 76,92% yang mampu bertahan pada permukaan kaca selama 7 hari. Pengukuran sudut kontak permukaan kaca dengan lapisan Semak dihasilkan 14,462° yang menunjukkan bahwa permukaan bersifat hidrofilik.

KARAKTERISASI STRUKTUR DAN SIFAT LISTRIK FILM TIPIS ZINC OXIDE DIDOPING GALLIUM DAN ALUMINIUM Didik Aryanto; Sugianto Sugianto; Putut Marwoto; Sulhadi Sulhadi
Jurnal Sains Materi Indonesia Vol 15, No 3: APRIL 2014
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

KARAKTERISASI STRUKTUR DAN SIFAT LISTRIK FILM TIPIS ZINC OXIDE DIDOPING GALLIUM DAN ALUMINIUM. Film tipis Zinc Oxide (ZnO) yang didoping unsur Gallium (Ga) dan Aluminium (Al) telah ditumbuhkan di atas gelas corning menggunakan DC Magnetron Sputtering. Efek dari doping Ga dan Al pada struktur dan sifat listrik film tipis ZnO telah dipelajari menggunakan X-Ray Diffractometer (XRD) dan I-Vmeter. Karakterisasi XRD menunjukkan bahwa film tipis ZnO murni dan ZnO yang telah didoping memiliki struktur polikristal dengan tipe heksagonal wurtzite. Kualitas dari film tipis ZnO meningkat dengan didoping unsur Ga, tetapi menurun ketika didoping unsur Al. Resistivitas dari film tipis ZnO berkurang ketika didoping dengan unsur Ga dan bertambah saat didoping unsurAl. Resistivitas terendah ditunjukkan film tipis ZnO yang didoping Ga (1%) sebesar 0,209 x 107 Ωcm.

INTERACTIVE MOBILE LEARNING MEDIA TO IMPROVE STUDENTS' HOTS ABILITY SUPPORTED WITH PROBLEM-BASED LEARNING MODEL Yeni Rima Liana; Suharto Linuwih; Sulhadi Sulhadi
Jurnal Pendidikan Fisika Vol 9, No 1 (2020)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22611/jpf.v9i1.18128

Education in the 21st century has entered the era of smartphone technology. The purpose of this research was to test the feasibility and the effectiveness of interactive mobile learning media supported with problem-based learning model to improve students’ HOTS ability. The research and development (R & D) with a 4D model (Define, Design, Develop, Disseminate). The field testing was a quasi-experiment with a pretest and posttest control group design. The research subjects consisted of four lecturers as expert validators, two teachers and two groups of 72 students in a senior high school 2 Batang Regency, Central Java. Data collection techniques through questionnaires, observation, interviews, and written test. Product feasibility test by material experts get a score of 3.65, media experts with a score of 3.68 and student responses with a score 3.46 all in very good category. The results of the Normalized-gain test were 70.60 for the experiment group and 35.69 for the control group. This shows that there were differences in the increase of students' HOTS ability between the experiment group and the control group. Based on the results of the Multivariate Test on GLM with partial eta squared, it was found that this media made an effective contribution of 88.5% to improving students' HOTS abilities

Analysis of the Results of the Reduction of Cyanide Acid Content in Hevea brasiliensis Seeds Diah Ayu Kusuma Putri; Sulhadi Sulhadi; Teguh Darsono
Journal of Natural Sciences and Mathematics Research Vol 5, No 1 (2019): June
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Rubber seeds (Hevea brasiliensis) are part of rubber plants that have not been utilized optimaly. The content contained in rubber seeds is sufficient, including fat content of 68.53 g/100 g, proteins 17.41 g/100 g, and carbohydratees 6.99 g/100 g. However, the obstacle faced is the presence of toxic compounds found in rubber seeds namely cyanide acid (HCN) which is very dangerous if it enters the body. The purpose of this study is to find out the right treatment to reduce the content of cyanide acid so that the rubber seeds can be utilized. The research method uses experimental comparative. The variation used in the reduction process is to soak the rubber seeds respectively for 12, 24, and 36 hours by replacing the immersion water once every 2 hours, then boil the rubber seeds into 2 liters of water for 2 hours by replacing the boiled water for 1 hour. The results showed that the greatest decrease in cyanide acid content occurred during soaking for 36 hours with boiling for 2 hours.©2019 JNSMR UIN Walisongo. All rights reserved.

Quality of Biocompost Resulting from Biopore Holes Based on Light Intensity and Acidity Degree (pH) Arik Pujiyanti; Sulhadi Sulhadi; Mahardika Prasetya Aji
Journal of Natural Sciences and Mathematics Research Vol 5, No 2 (2019): December
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

The use of chemical fertilizers that are not balanced with the provision of organic fertilizers can damage the soil. Chemical fertilizers can also damage the balance of nutrients in the soil and lower soil pH. Therefore, organic fertilizers are needed to help restore soil fertility and LRB as a medium for composting organic fertilizers. The biopore infiltration hole (LRB) is "activated" by providing organic waste. This waste will be used as a source of energy for soil organisms to carry out their activities through the decomposition process. This decomposed waste is known as compost. Compost is a term for man-made organic fertilizer made from the decomposition process of the remains of living things (plants or animals). The investigation of this study was to determine the quality of compost based on light intensity and acidity (pH) from the results of biopore infiltration holes (LRB) as well as good physical properties of compost. This type of research is an experimental research. Good quality compost has low resistance. The pH value of the compost in samples A,B,D,E is 6.5-7.5 so it is neutral, while the pH of the compost sample C is 8.5 is alkaline. The intensity of the light is high. The results of the lowest light intensity in the compost from this study were leaf compost + sawdust + EM4 of 990 lux, fermented in LRB for 2 weeks. Meanwhile, the highest light intensity value was found in the compost of raw material leaves which were fermented for 1 month at 1017 lux. So the greater the value of light intensity in the compost, the better quality it has, because it can improve soil fertility. ©2019 JNSMR UIN Walisongo. All rights reserved.

Effectiveness Analysis of the Utilization Liquid Smoke Distilled from Organic Materials as an Alternative for Fish Preservation Candra Dewi; Sulhadi Sulhadi; T. Darsono; E. D. Pratiwi
Journal of Natural Sciences and Mathematics Research Vol 5, No 1 (2019): June
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Liquid smoke is alternative preservation fish that does not cause pollution and does not damage the respiratory organs. Liquid smoke contains antibacterial and antioxidant so that it can preserve fish that have a fast rot character. This study aims to determine the characteristics and effectiveness of using liquid smoke as an alternative to preserving fish. The research method applied in preserving fish using liquid smoke is soaked; soaked and dried; and soaked and aerated. The variables in this study include the combination of bay leaves, lemongrass, and galangal; Pandan leaves; and tuna. The results showed that the characteristics of the liquid smoke of bay leaves, lemongrass and galangal and pandan leaves were almost the same clear color, the level of viscosity was like water, and the smell of smoke flavor each stung the distinctive aroma of organic matter. Based on data analysis, it was found that an effective way to use liquid smoke in replacing traditional fumigation was to soak it than dried in the sun. This is because soaking can increase antibacterial activity while drying can reduce water content in fish.©2019 JNSMR UIN Walisongo. All rights reserved.

Utilization of Waste Combustion Heat as an Alternative Renewable Electric Energy Source Based on Thermoelectric Generator Yeni Rima Liana; Sulhadi Sulhadi; Mahardika Prasetya Aji
Journal of Natural Sciences and Mathematics Research Vol 5, No 2 (2019): December
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Thermoelectric generator is one alternative energy source that is using a temperature difference system to produce electrical energy. This research study aims to utilize combustion heat waste using a thermoelectric generator as a source of renewable electricity. This research method uses the experimental method. The thermoelectric system was made using seven thermoelectric modules TEC1 - 12706 arranged in series by varying the combustion media in the form of Rice husk, Sengon sawdust (Albizia chinensis) and Teak sawdust (Tectona grandis). The test is done by measuring the output voltage, the temperature of the cold side and the hot side which are then analyzed to get the output power and generator efficiency. From the trial results it was found that the greater of the temperature difference, then the output voltage, output power and generator efficiency increase. Output voltage, output power and maximum efficiency of testing prototype thermoelectric generator that generated were 4.64 V, W 20.38 and 16.46 % with fuel Teak sawdust in the tenth minute when the temperature difference of 76.17 0C.©2019 JNSMR UIN Walisongo. All rights reserved.

Co-Authors Adina Widi Astuti Agus Yulianto Ahmad Minanur Rohim Ani Rusilawati Ani Rusilowati Aprianus Umbu Zogara Arik Pujiyanti Azimi Azimi Azizah Mutiarani Azizah Zhafirah Bambang Subali Budi Astuti Budi Naini Mindyarto, Budi Naini Candra Dewi David Moto Lele DENI SETIAWAN Diah Ayu Kusuma Putri Didik Aryanto Didik Aryanto Didik Setiawan E. D. Pratiwi Edy Cahyono Eli Trisnowati Faiz Mudhofir Farikhatul Mukharomah Fatwa Aji Kurniawan Febrianto Putra Fianti Fianti, Fianti Frilisa Dliyaul Haya Hartono Hartono Imron Imron Khaerul Umam Mahardika Prasetya Aji Mahardika Prasetya Aji Mahardika Prasetya Aji Mahardika Prasetya Aji Mugi Lestari Muqoyyanah Muqoyyanah Naila Hilmiyana Syifa Ngurah Made Dharma Putra Nofrina Maulani Nur Hamid Nur Khoiri Putut Marwoto Ragil Meita Alfathy Retno Sri Iswari S Linuwih Sabana Asmi Sigit Saptono Siti Hadijah Sugianto - Suharto Linuwih Sukirman - Supiyadi Supiyadi Supriyadi Supriyadi T. Darsono Teguh Darsono Tutik Arifah Wahyuni, Siti Widya Nugraheni Widiningrum Wihdatus Syarifah Wiyanto Wiyanto Yeni Purwiyantini Yeni Rima Liana Yeni Rima Liana Yeni Rima Liana Yeni Rima Liana Yeni Rima Liana Zayyinul Mushthofa

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