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All Journal Acta Aquatica: Aquatic Sciences Journal Bioma : Jurnal Biologi Indonesia Jurnal Teknologi Pendidikan Industrial Research Workshop and National Seminar Berita Sedimentologi Journal of Vocational in Aquaculture (JAVA)
Asep Permana, Asep
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Analisis Efektivitas Cooling Towersebelum Dan Sesudah Perawatan Di Istana BEC Bandung Permana, Asep; Margana, Ade Suryatman; Ayu, Wirenda Sekar
Prosiding Industrial Research Workshop and National Seminar Vol. 14 No. 1 (2023): Vol 14 (2023): Prosiding 14th Industrial Research Workshop and National Semina
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/irwns.v14i1.5437

Abstract

Cooling tower adalah sistem pendinginan yang digunakan untuk mendinginkan air dengan cara membuang kalor ke atmosfer. Cooling tower menjadi salah satu bagian penting dalam sistem refrigerasi di dunia industri yang dimana digunakan untuk mendinginkan ulang air yang mengalir pada sistem, melalui perpindahan panas dan massa pada air. Tujuan penelitian ini untuk mengetahui efektivitas yang dimiliki pada saat sebelum dan sesudah perawatan. Untuk menjaga dan memperolah pengukuran diperlukan adanya perawatan cooling tower secara berkala. Metode pada penelitian ini menggunakan metode statistik deskriptif, yang mana metode ini menjabarkan suatu objek penelitian yang digambarkan melalui grafik hasil pengolahan data dan data yang didapatkan dari hasil pengumpulan data pengukuran dan pengamatan. Pada kinerja cooling tower menggunakan nilai range dan nilai approach, semakin besar selisih nilai range semakin baik pula kinerja cooling tower dan semakin kecil nilai approach semakin bagus kinerja cooling tower. Hasil akhir nilai efektivitas meningkat dari sebelum perawatan, yang dimana meningkat sebesar 2%. Masing-masing memiliki nilai sebelum perawatan 49% dan sesudah perawatan 51%. Dapat disimpulkan cooling tower tersebut bekerja dengan baik dan efisien.
Indonesian Stratigraphic Lexicon: Past, Present and Future Darman, Herman; Permana, Asep; Syavitri, Dewi
Berita Sedimentologi Vol 49, No 3 (2024)
Publisher : Ikatan Ahli Geologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51835/bsed.2024.49.3.444

Abstract

The Stratigraphic Lexicon is an important source of regional geological information. Due to the development of the science and the geological understanding, the lexicon needs to be updated. Following the first Indonesian Stratigraphic Lexicon by Marks (1957), Harahap et al. (2003) made an update to the lexicon. The latter version was later published online as a website. A GIS format of the lexicon will soon be available for geoscientists to use. This paper also provides suggestions for improving the lexicon, which includes the preparation of logs type for each section. A systematic approach to periodically ever greening the lexicon is necessary. The Geological Survey of Indonesia and the Indonesian Association of Geologists should be involved in the future improvement of the lexicon.
TOTAL KAROTENOID IKAN SUMATRA ALBINO (Puntius tetrazona) YANG DIBERI PAKAN TAMBAHAN TEPUNG KEPALA UDANG Tania, Novita; Sukarman, Sukarman; Permana, Asep; Supiyani, Atin
Bioma Vol. 14 No. 1 (2018): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.487 KB) | DOI: 10.21009/Bioma14(1).1

Abstract

ABSTRACTAlbino tiger barb (Puntius tetrazona) is a freshwater ornamental fish that has a attractive colors. Carotenoid sources should be added in the diet because fish can not synthesis carotenoids in their bodies. One source of natural carotenoids (astaxantin and cantaxantin) is shrimp head meal, whose use has not been studied in albino tiger barb (Puntius tetrazona). The research was conducted from December 2016 until April 2017, at the Balai Riset Budidaya Ikan Hias (BRBIH) Depok. The method used in this research is an experimental method, with Completely Randomized Design (RAL). The treatment in this research is TKU supplemental feeding (0%, 10%, 20%, 30%, 40%). The data taken are total carotenoid, were analyzed using One Way ANAVA at 95% confidence level and continued with Duncan test at α <0,05 with SPSS 17.0 program. The result of the research is the addition of the best TKU by 30% to improve the color quality, total carotenoids, and growth of albino tiger barb (Puntius tetrazona). The highest increase in total carotenoids at the fins of 13.54 ± 0.24 ppm and on the skin was 7.54 ± 0.11 ppm. Keyword: Shrimp Head Meal, Carotenoid, Feed, Color Quality, Puntius tetrazona.
PENGEMBANGAN E- MODUL BERBASIS FLIP BOOK PADA MATA PELAJARAN CHASSIS DAN PEMINDAH TENAGA SISTEM REM PESERTA DIDIK KELAS XI TEKNIK KENDARAAN RINGAN SMK NEGERI 1 SAGARANTEN KABUPATEN SUKABUMI Permana, Asep; Ibdalsyah, Ibdalsyah; Hartono, Rudi
JURNAL TEKNOLOGI PENDIDIKAN Vol 14 No 1 (2025): Jurnal Teknologi Pendidikan
Publisher : Prodi Teknologi Pendidikan Sekolah Pascasarjana Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/tek.pend.v14i1.20878

Abstract

This study aims to develop a Flip Book-based E-Module as an interactive learning medium for the subject of Chassis and Power Transmission Brake Systems for Grade XI students majoring in Light Vehicle Engineering at SMK Negeri 1 Sagaranten, Sukabumi Regency. The development addresses the challenges of vocational education, which is still dominated by conventional methods and lacks instructional media capable of presenting technical content visually and engagingly. The research employed a Research and Development (R&D) method by combining the ADDIE and Dick & Carey instructional design models. The development stages included needs analysis, design, prototype development, expert validation, and limited trials with students. The validation results from subject matter experts, media experts, and instructional design experts showed that the developed E-Module is highly feasible for use, with respective validation scores of 92%, 93%, and 94%. Small- and medium-group trials also demonstrated positive student responses, with feasibility scores of 89% and 91%, respectively. Furthermore, the effectiveness test using pre-test and post-test methods indicated a significant increase of 55% in students' learning outcomes after using the Flip Book-based E-Module. These findings confirm that the Flip Book-based E-Module is not only feasible but also effective in enhancing the quality of vocational learning. The product is expected to serve as an alternative digital learning medium that supports the implementation of the Merdeka Curriculum. Additionally, this digital module has the potential to strengthen students’ digital literacy and independent learning in the era of Education 4.0.
The Effect of Different Live Feeds on the Growth Performance of Wild Betta Betta channoides Fry Iskandar, Andri; Setiawan, Wahyu Dwi; Permana, Asep; Indriastuti, Cecilia Eny
Journal of Vocational in Aquaculture (JAVA) Vol 1 No 1 (2024): NOVEMBER 2024
Publisher : College of Vocational Studies, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/java.v1i1.59577

Abstract

Wild betta fish Betta channoides is an endemic species from East Kalimantan, Indonesia. Currently, wild betta Betta channoides is classified as a species threatened with extinction due to a declining population, caused by environmental damage to its natural habitat. This damage is driven by the construction of the new capital city in East Kalimantan, deforestation for oil palm plantations, and overfishing to meet trade demands. To preserve the existence of Betta channoides, domestication efforts are necessary. Depok Ornamental Fish Cultivation Research Institute has been working on cultivating this species since 2019. However, one of the current challenges is the suboptimal growth of larvae due to the lack of knowledge of suitable life feeds for accelerating fish growth. The aim of this study is to enhance the growth of wild betta fish Betta channoides larvae by providing different types of life feeds. The method used was a completely randomized design (CRD) with four treatments and three replicates: Artemia sp. (K), bloodworms (CD), silk worms (CS), and water fleas (KA). Data were analyzed using SPSS with Duncan's test and the Kruskal-Wallis test. The results showed that feeding with silk worms yielded the optimum outcomes for absolute length growth 0.780 ± 0.020 cm, absolute weight growth 0.272 ± 0.005 g, and survival rate 93.33 ± 5.773%. The data indicated that silk worm treatment had a significant effect compared to the control, bloodworms, and water fleas. The study concluded that different feeds significantly affect growth performance and survival rates, with silk worms producing the highest results.
Pengaruh ketinggian air dalam pemeliharaan larva ikan hias botia (Chromobotia macracanthus, Bleeker) Sari, Maulina; Hatta, Muhammad; Permana, Asep
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Aquatic Sciences Journal, Vol. 1: No. 1 (October, 2014)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v1i1.294

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh ketinggian air yang berbeda terhadap pertumbuhan dan kelangsungan hidup larva ikan botia (Chromobotia macracanthus, Bleeker). Hasil penelitian menunjukkan bahwa sintasan atau kelangsungan hidup tertinggi terdapat pada perlakuan B dengan ketinggian air 10 cm yaitu sebesar 98.88%, sedangkan kelangsungan hidup terendah terdapat pada perlakuan A dengan ketinggian air 5 cm yaitu sebesar 97.99%. Pertambahan bobot nilai tertinggi terjadi pada perlakuan A dengan ketinggian air 5 cm dengan nilai bobot rata-rata 0.02252 gr dan pertambahan bobot rata-rata terendah terjadi pada perlakuan C dengan ketinggian air 15 cm yaitu sebesar 0.01132 gr. Pertambahan panjang rata-rata tertinggi terjadi pada perlakuan A yaitu sebesar 0.42 cm dan yang terendah terjadi pada perlakuan B yaitu sebesar 0.29 cm. Parameter kualitas air selama penelitian masih dalam kisaran optimal dimana suhu 24,3-28,9oC, pH 6,5-7,0, DO 6,84-7,69 ppm, NH3 0,00-0,03 ppm, NO2 0,00-0,07 ppm. Analisis statistik dengan uji F diperoleh bahwa ketinggian air yang berbeda dalam pemeliharaan larva ikan botia (C. macracanthus, Bleeker) berbeda sangat nyata (P>0.01) terhadap pertambahan bobot dengan nilai Fhitung (21.00) > Ftabel (10.92), dan berbeda sangat nyata terhadap pertambahan panjang dengan nilai Fhitung (23.56) > Ftabel (10.92), sedangkan untuk sintasan atau kelangsungan hidup tidak berbeda nyata antar perlakuan. Hasil uji BNT menunjukkan, setiap perlakuan memberikan pengaruh terhadap pertumbuhan dan tidak berpengaruh terhadap kelangsungan hidup.The study aims to determine the effect of different water levels on the growth and survival of fish larvae Botia (Chromobotia macracanthus, Bleeker). The results showed that the survival rate was highest in treatment B with the water level was 10 cm which was equal to 98.88 %, whereas the lowest survival rate was found in treatment A with the water level was 5 cm which was equal to 97.99 %. The highest value of weight gain occurred in treatment A with average value in weight was 0.02252 g and the average weight gain was lowest in the treatment of C that reached 0.01132 g. The highest growth of length was occured in treatment A that was equal to 0.42 cm and the lowest occurred in treatment B that was 0.29 cm. Water quality parameters during the study were in the tolerance range where the optimum temperature were 24,3-28,9 oC , pH 6.5 to 7.0, DO 6.84 to 7.69 ppm, NH3 0.00 to 0.03 ppm , NO2 0.00 to 0.07 ppm . Statistical analysis by F test showed that the different water levels in the larval rearing of fish Botia (C. macracanthus, Bleeker) was significantly different ( P > 0.01) in the weight gain with the value of Fcount ( 21.00 ) > Ftable ( 10.92 ), and it was significantly different against the length with the value of F count ( 23:56 ) > F table ( 10.92), while for the survival rate showed has not significantly different between treatments. The LSD test showed that all the treatment were effected the growth rate, but not for survival rate.
Co-Authors Darman, Herman Hartono, Rudi Ibdalsyah Ibdalsyah Indriastuti, Cecilia Eny Iskandar, Andri Margana, Ade Suryatman Maulina Sari, Maulina Muhammad Hatta Setiawan, Wahyu Dwi Sukarman Sukarman Supiyani, Atin Syavitri, Dewi Tania, Novita Wirenda Sekar Ayu